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.


Airtech Supply, Inc - NADCAP Approved
3058 Hwy 290
Hot Springs, AR 71913 United States
Phone: 501-525-7707

Process Description
Forming & Straightening of Titanium and Titanium Alloys. “Suppliers limited to cold forming of titanium per ACS-PRS-1008 are not required to be approved by NGC provided all stress relief operations are performed by an approved supplier to AMS2801.”
Hot forming

Process Specification for Sealing, Integral Fuel Tank and Fuel Cell Cavity
Fillet, fay surface, wet fastener install, fastener overcoat, and dome nut plate fastener sealing

Heat Treatment of Wrought Aluminum Alloy Parts
Heat Treat
Solution Heat Treat, Water Quench, Aging

Heat Treatment of Titanium Alloy Parts
Heat Treat
Stress Relieve only

Heat Treatment of Titanium and Titanium Alloys
Heat Treat
Stress Relieve only