MIL-DTL-45916C
ASTM E1444/E1444M Standard Practice for Magnetic Particle Testing
ASTM F1941
Standard Specification for Electrodeposited Coatings on
Threaded Fasteners (Unified Inch Screw Threads
(UN/UNR))
(Copies of these documents are available from www.astm.org or the American Society
for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.)
SOCIETY OF AUTOMOTIVE ENGINEERS (SAE)
SAE AIR4127
Steel: Chemical Composition and Hardenability
SAE AMS2700
Passivation of Corrosion Resistant Steels
SAE AMS-QQ-P-416
Plating, Cadmium (Electrodeposited)
(Copies of these documents are available from www.sae.org or the Society of
Automotive Engineers, Inc., 400 Commonwealth Drive, Warrendale, PA 15096-0001.)
2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of
a conflict between the text of this document and the references cited herein, the text of this
document takes precedence. Nothing in this document, however, supersedes applicable laws
and regulations unless a specific exemption has been obtained.
3. REQUIREMENTS
3.1 Material. Unless otherwise specified (see 6.2), inserts shall be made of the materials
specified herein.
3.1.1 Carbon steel. Carbon steel shall be in accordance with SAE AIR4127, as specified in
MS35914 and MS51836.
3.1.2 Corrosion-resisting steel. Corrosion-resisting steel shall be type 303 in accordance
with SAE AIR4127, as specified in MS35914 and MS51836.
3.1.3 Brass. Brass shall be in accordance with ASTM B16/B16M, ASTM B36/B36M or
ASTM B121/B121M, as specified in MS51836.
3.2 Protective coating. Inserts shall be furnished with one of the following protective
finishes.
3.2.1 Cadmium plating. Carbon steel inserts shall be cadmium plated in accordance with
SAE AMS-QQ-P-416, Type II, Class 3.
3.2.2 Passivation. Corrosion-resisting steel inserts shall be passivated in accordance with
SAE AMS2700.
3.2.3 Black Chemical. Brass inserts shall have a black chemical finish in accordance with
MIL-F-495.
3.2.4 Zinc Nickel plating. As an alternative to Cadmium plating, carbon steel inserts may
be ZnNi plated in accordance with ASTM F1941 Fe/Zn-Ni 8ET alkaline zinc nickel electroplate,
12%-16% mass percent nickel, with chemical conversion coating per MIL-DTL-5541 TYPE II
CLASS 1A.
3.3 Lubrication. Type II inserts with self-locking internal threads shall be solid film
lubricated. The lubricant shall be in accordance with MIL-PRF-46010.
3.4 Dimensions. The design, dimensions and tolerances of inserts shall be as specified in
MS35914 and MS51836 (see 6.2). Dimensions and tolerances shall apply after application of
protective coating and prior to application of lubricant.
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