Specifications for machine shops and finishers
What each spec covers, whether it is current, what a shop must do to comply, and how often it appears on parts in DLA's catalog.
Finish specifications
- MIL-DTL-5541 (MIL-C-5541)
The military specification for chemical conversion coatings on aluminum and aluminum alloys. It replaced MIL-C-5541 in 2006, and most catalog records still use the old name.
11,640 DLA NSNs cite it
- MIL-A-8625
The military specification for anodic coatings on aluminum and aluminum alloys, from thin chromic acid films to Type III hard coat.
19,091 DLA NSNs cite it
- QQ-P-416 (AMS-QQ-P-416)
The federal specification for electrodeposited cadmium plating. It was cancelled in 2002 in favor of SAE AMS-QQ-P-416, but it is still the most-cited of the ten specs on this site in DLA's hardware catalog.
66,219 DLA NSNs cite it
- QQ-P-35 (AMS-QQ-P-35)
The federal specification for passivation treatments for corrosion-resisting (stainless) steel. It was cancelled in 1997 in favor of ASTM A967, and industry guidance now points aerospace work to SAE AMS 2700.
38,329 DLA NSNs cite it
Material specifications
- AMS 5643
SAE's material specification for corrosion-resistant steel bars, wire, forgings, mechanical tubing and rings in the 16Cr-4.0Ni-0.30Cb-4.0Cu alloy, solution heat treated and precipitation hardenable. DLA catalog records pair it with 17-4 PH.
8,473 DLA NSNs cite it
- AMS 4928
SAE's material specification for annealed 6Al-4V titanium alloy bars, wire, forgings, flash-welded rings and drawn shapes.
6,540 DLA NSNs cite it
- QQ-S-763 (AMS-QQ-S-763)
The federal specification for corrosion-resisting (stainless) steel bars, wire, shapes and forgings. It was cancelled in 1998 in favor of SAE AMS-QQ-S-763.
16,390 DLA NSNs cite it
- MIL-S-5000 (AMS-S-5000)
The military specification for chrome-nickel-molybdenum (E4340) steel bars and reforging stock. It was cancelled in 2000 in favor of SAE AMS-S-5000, which was itself cancelled in 2007.
15,078 DLA NSNs cite it
- MIL-S-5626 (AMS-S-5626)
The military specification for chrome-molybdenum (4140) steel bars, rods and forging stock for aircraft applications. It is cancelled, but still cited on more than 13,000 DLA parts.
13,589 DLA NSNs cite it
Hardware standards
Catalog counts: DLA PUB LOG FLIS, release 2026-10-27, 16 hardware and mechanical federal supply groups. Look up any part with the free NSN lookup.