Administration Regulations (EAR). Diversion contrary to U.S. law is prohibited.

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1 EAR CONTROLLED: EAR99 These commodities, technology or software are subject to the U.S. Export Administration Regulations (EAR). Diversion contrary to U.S. law is prohibited.

2 Revision History Rev. Page Description of Revision Date A All Initial Release 3/05/2015 B 13 Updated to discoloration 01/03/2017 QP Page 2 of 15 Revision: B

3 1.0 Purpose The purpose of this standard is to provide visual acceptance criteria for Curtiss Wright Sensors products. This procedure applies to all manufacturing and inspection activities on Curtiss Wright Sensor products. 3.0 Responsibility 3.1 Engineering and Quality Management is responsible for the application and administration of this procedure. 3.2 All employees are responsible for properly handling and documenting nonconforming material in accordance with CW-Division discrepancy and MRB procedures. 4.0 Applicable Documents 4.1 Applicable documents are per procedures instituted by each Curtiss Wright manufacturing site. Documents include Control of Non-Conforming Product, Material Review Board and Records Retention. 5.0 Definitions / Acronyms 5.1 Blister: A localized lifting of coating, plating or paint from base material, appearing as a protuberance that may break when probed. 5.2 Burnish Mark: A local smoothing of a metal surface. Often to a high luster resulting from rubbing. It may contain scratches of no apparent depth. Definition includes buffing and polishing marks. 5.3 Burr / Sharp Edge: A rough ridge or edge left at the intersection of two surfaces. 5.4 Burn: discoloration or streaks in plastic components due to improper mold / melt temperatures. 5.5 Chatter Mark: A tool mark on material caused by vibration or jumping of a machine cutting tool. 5.6 Contamination: the presence of unwanted material or residue on or inside of a part or product. 5.7 Corrosion: A deterioration of the metal resulting in change of color and leaving a rough surface that may show pits (small cavities). 5.8 Crack: A separation of material visible to the naked eye. QP Page 3 of 15 Revision: B

4 5.9 Crazing: A network of fine cracks Dent / Ding / Nick: A depression in a surface normally having rounded edges, corners and bottom. Caused by an impact with an object Discoloration / Bleeding: A localized or generalized change of color of the part. Discoloration may be induced by Induction / Welding / Heat Treating processes. Definition includes etching Fetting: Removal of excess material or surface defects from casting flash / forging seams and other similar parts Finger Print: Stains left by unprotected hands Flaking/Peeling: a section or area of a plated, anodized, painted, or other coating medium that lifts away from the intended surface. Loose scale like fragments on the surface Fleck Marks: A vertical cut mainly caused by debris in cutting fluids F.O.D (Foreign Object Debris): foreign material introduced into the machining, assembly, inspection or packaging processes Scratch: the displacement and removal of material at the surface, most often resulting from contact with a hardened or sharp foreign object. Scratches can be superficial, have depth or appear on a sealed surface. Scratch categories include Cat 1 (Superficial), Cat 2 (Wide), Cat 3 (Depth) and Cat 4 (Sealing Surface). See Component Inspection Matrix Stain: Local visual induction resulting from liquid drying on parts such as Alocrom. Includes any process material which is visible on the component Step: An abrupt change in a surface profile or a mismatch between two or more surfaces Surface Finish: The result of the machining process defined by the surface finish requirement Tool Marks: A mark in the direction of the machining lay left by the machining tool or across the lay caused by tool withdraw or metal chips. Marks can be straight, circular or spiral. Can also be caused by a dull or broken tool Undercut: A groove or recess cut into a surface near a shoulder or other projection. QP Page 4 of 15 Revision: B

5 6.0 General Requirements 6.1 Some images/examples herein may not be of current CWC products but represent the levels of Acceptance and Rejection. 6.2 If there is any uncertainty, consult your supervisor who will consult with QA. Remember IF IN DOUBT ASK. 6.3 If the CEO process is required in the traveler or routing, inspect the part against the appropriate CEO documentation and to the requirements of this procedure. 6.4 Visual features shall fall into the following categories Acceptable without rework (in compliance with Table 1) Acceptable with immediate rework activity (described in Table 1) Rejectable product with visual deviations deemed unacceptable shall be considered as non-conforming and dealt with in accordance with the relevant site procedures covering rework or scrap Visual features typical of a finishing operation (such as machining) are acceptable if the requirements are met 6.5 It is permissible to verify length and depth values by any practical means. 6.6 Visual inspection shall be performed with an unaided eye at arm s length or closer. If abnormalities are found, then a referee 4x optical magnification is permissible. 6.7 The probe used for inspection of scratch indications shall have an approximate.025 inch (0.64 mm) spherical end radius and shall be made of a suitable material that will not damage the part. 6.8 All sealing surfaces shall be inspected at 4x magnification (minimum). 6.9 The inspector s vision shall be corrected for 20/20 vison per procedures instituted by each Curtiss Wright manufacturing facility. Part inspections shall take place under lighting conditions of 1100 lumens minimum and at the designated inprocess and final inspection steps as noted in the assembly traveler / work instructions. Definitions as to inspection criteria and accept / reject callouts are indicated in the Component Inspection Matrix, found in Table 1 at the end of this procedure. QP Page 5 of 15 Revision: B

6 7.0 Non-Painted Surfaces: Unaided Visual Inspection (4x referee mag.). 7.1 Non-painted surfaces shall be free of nicks, dents, dings, scratches, burrs, sharp edges, tool marks and FOD. 7.2 Sealing surfaces (o-rings) shall be inspected at 4x magnification (minimum). 7.3 Shown are unacceptable conditions. QP Page 6 of 15 Revision: B

7 8.0 Paint / Sealant / Coated Surfaces: Unaided Visual Inspection (referee 4x mag.). 8.1 All sealed surfaces shall be free of dirt, grease, oil, nicks, scratches, voids/pin holes, bubbles, peeling, and cracks. 8.2 The finish shall be smooth with complete uniform coverage without noted blemishes, paint buildup or overspray. 8.3 Shown are unacceptable conditions: QP Page 7 of 15 Revision: B

8 9.0 Rust/Corrosion Surfaces: Unaided Visual Inspection (referee 4x mag.). 9.1 There shall be no rust or corrosion on painted and unpainted surfaces. 9.2 Shown are unacceptable conditions: QP Page 8 of 15 Revision: B

10.0 Connectors: Unaided Visual Inspection (referee 4x mag.). 10.1 There shall be no visible damage to the connector shell or internal contacts (pins). 10.2 The contacts shall not be bent, damaged, or deformed.

9 10.0 Connectors: Unaided Visual Inspection (referee 4x mag.) There shall be no visible damage to the connector shell or internal contacts (pins) The contacts shall not be bent, damaged, or deformed There shall be no flakes or metallic FOD in the connector or contacts (sockets) All seals on connector pins shall be intact without damage or voids On circular MIL standard connectors, there shall be no damage (tear) of the rubber seal surrounding the metal contacts All contacts shall be seated (no noted recessed contacts) Shown are unacceptable conditions: QP Page 9 of 15 Revision: B

11.0 Exit Wires/Cable: Unaided Visual Inspection (referee 4x mag.). 11.1 All wiring and heat shrink insulation shall be inspected for damage including insulation tears and cuts.

10 11.0 Exit Wires/Cable: Unaided Visual Inspection (referee 4x mag.) All wiring and heat shrink insulation shall be inspected for damage including insulation tears and cuts. There shall be no exposed wiring except allowed per Potting fill around wires shall have complete fill without voids or holes Shown are unacceptable conditions: QP Page 10 of 15 Revision: B

12.0 Stamping / Marking: Visual Inspection Criteria (no magnification). 12.1 Blurred, illegible or incomplete stamping of information.

11 12.0 Stamping / Marking: Visual Inspection Criteria (no magnification) Blurred, illegible or incomplete stamping of information Cage Code shall be correct per customer / CW location Shown are unacceptable conditions: QP Page 11 of 15 Revision: B

12 13.0 Non-conformances 13.1 Non-conformances shall be processed per applicable procedures for the CW manufacturing site. Product shall be placed in quarantine until disposition by the appropriate MRB authority Component Inspection Matrix (Table 1). FEATURES DEFINITIONS APPLICABLE PARTS ACCEPT/ REJECT Blister A localized lifting of coating, All coated, plated or REJECT plating or paint from base painted parts and details. material, appearing as a protuberance that may break when probed. Burnish Mark Burr Chatter Mark Corrosion Crack A local smoothing of a metal surface. Often to a high lustre resulting from rubbing. It may contain scratches of no apparent depth. Definition includes buffing and polishing marks. A rough ridge or edge left at the intersection of two surfaces A tool mark on material caused by vibration or jumping of a machine cutting tool. A deterioration of the metal resulting in change of color and leaving a rough surface that may show pits (small cavities) A separate of material visible to the naked eye All parts and details on un-painted areas only REJECT ACCEPT CONDITIO N Not acceptable on Seal Grooves Provided that the material thickness meets requirement. ACTIONS TO BE RECORDED Reject at source. Follow Non- Conforming Procedure All parts and details REJECT All burrs are to be removed immediately at source. All parts and details REJECT ACCEPT Not acceptable on Seal Grooves Provided part meets surface requirement Assess to requirements All parts and details REJECT Reject at source. Follow Non- Conforming Procedure All parts and details REJECT Reject at source. Follow Non- Conforming Procedure Crazing A network of fine cracks All parts and details REJECT Reject at source. Follow Non- Conforming Procedure Dent A depression in a surface, normally having rounded edges, corners and bottom. Caused by an impact with an object All parts and details REJECT Reject at source. Follow Non- Conforming Procedure QP Page 12 of 15 Revision: B

13 FEATURES DEFINITIONS APPLICABLE PARTS ACCEPT /REJECT Dis-coloration A localized or generalized All heat treated parts and ACCEPT change of color of the part. details made of steel, Definition includes etching nickel alloys Fettling Removal of excess material or surface defects from casting flash/forging seams and other similar parts Finger Print Stains left by unprotected hands Fleck Marks Flaking/Scale A vertical cut mainly caused by debris in cutting fluids Loose, scale like fragments on a surface All nitride parts and details ACCEPT CONDITIO N Provided it is an even light straw or light blue in color and free of corrosion Provided it is light to dark grey in color All Anodized parts ACCEPT Provided it is uniform light grey All Hard Anodized parts ACCEPT Provided it is adherent, uniform in colour and not powdery Alocrom ACCEPT Provided it is a uniform gold/yellow colour. Some variation is allowable in touch up areas. Contact QA Electroless nickel plated steel parts which have been subject to a thermal deposit hardening process (bake) in a noninert atmosphere e.g. SAE AMS 2404, Class 2. ACCEPT Any shade of light yellow to dark peacock blue/purple, and any variability across the part is acceptable All parts and details ACCEPT Provided parts are blended and uniformed. Drawing limits must be maintained. All parts and details ACCEPT Provided action is taken to clean the component All ground diameters Unacceptable if there is more than one indication on the same axis ACTIONS TO BE RECORDED Contact QA in regards to touch ups Remove immediately at source Reject at source. Follow Non- Conforming Procedure All parts and details REJECT Reject at source. Follow Non- Conforming Procedure QP Page 13 of 15 Revision: B

14 FEATURES DEFINITIONS APPLICABLE PARTS ACCEPT /REJECT CONDITIO N Superficial A scratch that has no apparent All parts and details ACCEPT Rework Scratch depth (cannot be felt by probe) options will CAT 1 Less than 10mm apply if deemed applicable Wider Scratch Marks CAT 2 Scratch with apparent depth CAT 3 Scratch on sealing surface, critical bore with apparent depth. CAT 4 Stain or excess process material A scratch which has occurred in a treated/coated material and is CLEARLY visible in normal lighting conditions (i.e. not superficial as above) Significant damage of surface area in length and depth and can be felt be a probe The scratch is NOT purely superficial (as above) AND the scratch is likely to cause a loss of functionality or performance due to its location Local visual indication resulting from liquid drying on parts e.g Alocrom. Includes ANY process material which is visible on the component. All parts and details REJECT Due to the width of the scratch the appearance of the surface is extremely poor and is IMMEDIAT ELY evident to the inspector All parts and details REJECT Major damage with significant depth All parts and details REJECT Scratch is on a critical area or surface/bore, Further consultation is required if unsure whether area is critical All parts and details ACCEPT REJECT Provided there is no visible change in height and excess has been cleaned. Must meet requirement If excess material remains after cleaning ACTIONS TO BE RECORDED Mend, blend. Reanodize (if req d) superficial scratches. Reject at source. Follow nonconformance procedure. Reject at source. Follow nonconformance procedure. Reject at source. Follow nonconformance procedure. Remove excess immediately at source. QP Page 14 of 15 Revision: B

15 FEATURES DEFINITIONS APPLICABLE PARTS ACCEPT /REJECT Step An abrupt change in a surface All machines parts and ACCEPT profile or a mismatch between details two or more surfaces Surface Finish Tool Mark Undercut The result of the machining process defines by the surface finish requirement A mark in the direction of the machining lay left by the machining tool or across the lay caused by tool withdraw or metal chips. Marks can be straight, circular or spiral. Can also be caused by a dull or broken tool. A groove or recess cut into a surface near a shoulder or other projection All machined parts and details All machined parts and details All machined parts and details ACCEPT ACCEPT ACCEPT CONDITIO N Provided it complies with requirement MUST meet requirement Provided part meets surface requirement and does not fail CAT 1 Provided it blends smoothly with adjacent surfaces and that it is within tolerances. ACTIONS TO BE RECORDED Examine against requirements. Follow nonconformance procedure if required. Examine against requirements. Follow nonconformance procedure if required. Examine against requirements. Follow nonconformance procedure if required 15.0 Records. The preservation, storage and period of records must be in accordance to applicable Records Control procedures per CW manufacturing site. Appendix A Additional Change Details Issue B - Update to section 14 Discoloration with respect to Electroless nickel plated steel parts which have been subject to a thermal deposit hardening process (bake) in a non-inert atmosphere e.g. SAE AMS 2404, Class 2. Rationale as follows: Discoloration occurs due to the formation of nickel sulfate when the parts undergo thermal deposit hardening in the presence of moisture from the atmosphere. There are at least 7 nickel sulfate salts which differ in their hydration or crystal habit, resulting in the range of colors from light yellow to dark peacock blue/purple. Small variances in moisture or humidity will cause a range of these colors to be evident within a single part or batch of parts, and this is completely normal. SAE AMS 2404, Class 2 specifically states that discoloration may occur and is acceptable. As additional proof, sample parts demonstrating the greatest variation have been subject to copper sulfate tests to prove that iron is not present. QP Page 15 of 15 Revision: B

16 Curtiss-Wright Corporation Doc-Sign Document Approval Date : Document Title : OBJECTIVE : SIGNATURE'S : REVIEWED BY (All signatures must show typed name and title) SIGNATURE / DATE Prepared By

SURFACE INSPECTION ACCEPTANCE CRITERIA

SURFACE INSPECTION ACCEPTANCE CRITERIA OC #: QAP 3.0-3 PAGE: 1 OF 6 REVISION RECOR EFFECTIVE REVISE BY APPROVE BY REVISION 10-02-2012 R. Montfort P. Robino Revision N/C 10-23-2012 R. Montfort P. Robino Revision A Revised to clarify visual criteria