Supplier Quality (SQ) from Northrop Grumman Aeronautics Systems (NGAS) and the Strategic Space Systems Division (SSSD) and the Strategic Deterrent Systems (SDS) of the Space Sector (SP) maintain an "Approved Special Processor List" (ASPL) for all NGAS, SSSD and SDS programs. This list can be sorted by Supplier Name, Supplier Number, Country, or Process Specifications and Process Categories.

How to use the ASPL and the enclosed information is bulleted below:

  • Users must initially select the specific ASPL they are searching within (i.e. Aeronautics Systems, Strategic Space Systems, or Strategic Deterrent Systems). If you are unsure which ASPL to search please verify with your NG Buyer.
  • All specifications can be selected by selecting Specification (1st button), Category (2nd button), which includes 8 categories and Space Systems Division specifications, or F35 specifications under Program (3rd button).
  • At the Top RH side of the site is a “Helpful Links” button that has 8 links. See Below for 5 specific ones.
    • First two links are to Boeing’s ‘D1-4426’ ASPL and Lockheed’s ‘QCS-001’ ASPL.
    • Third is a “Change Log” that shows when processors are added or removed, or when specifications are added or removed from the processors or the ASPL.
    • The 4th and 5th are listings of NDT technique approvals; by “Processor and by Part Number”.
For any questions, contact:

Warning:    Northrop Grumman process specifications contain technical data whose export is restricted by the Arms Export Act (Title 22, U.S.C., Sec 2751 et seq.) or the Export Administration Act (Title 50, U.S.C., App. 24001-240). Violation of these export laws are subject to severe criminal penalties.

 


 
West Valley Plating - NADCAP Approved
90127518
Independent Processor
21061 Superior Street
Chatsworth, CA 91311 United States
Phone: 818-709-1684
Fax:
Selected sector: AS

Specification
Process Description
Category
Process Specification for Etching Prior to Penetrant Inspection
Chemical Processing
Limits:
Alternate titanium etch solution approved by RCI 662234

Cleaning and surface preparation of titanium and titanium alloys
Chemical Processing
Limits:
This specification, ACS-PRS-2204 was originally withheld pending submission and approval of their internal procedure WI-522 and tied to RCI 662234, that was written against ACS-PRS-1053 to approve use of an alternate etch solution for titanium parts. Both documents have now been approved by NGC M&P.

Penetrant Inspection
Non-Destructive Testing
Limits:
Refer to ASPL for approved NDT procedure and/or technique approval

Magnetic Particle Inspection
Non-Destructive Testing
Limits:
Refer to ASPL for approved NDT procedure and/or technique approval

Passivation Treatments for Corrosion-Resistant Steel
Chemical Processing
Limits:
Type 2, 6

Plating, Cadmium (Electrodeposited).
Chemical Processing
Limits:
None

Chemical Passivation Treatments for Stainless Steel Parts
Chemical Processing
Limits:
None

Standard Practice for Operating Salt Spray (Fog) Apparatus
Non-Destructive Testing
Limits:
Approved for in-house testing only

Standard Practice for Liquid Penetrant Testing
Non-Destructive Testing
Limits:
None

Standard Practice for Magnetic Particle Testing
Non-Destructive Testing
Limits:
None

Chemical Conversion Coatings for Aluminum and Aluminum Alloy
Chemical Processing
Limits:
Limited to Type 1 only

Anodic Coatings For Aluminum and Aluminum Alloys
Chemical Processing
Limits:
5% sodium dichromate seal is required when Mil-PRF-8625 anodize is called out on E2, F35 engineering drawings.