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DOD-F-24669/3
7 Jul..1986
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SUPERSEDING
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MIL-S-869C
14 May 1958
MILITARY SPECIF1CAI’1O?J
FORGINGS AND FORGING STOCK,
sTEEL BARS AND BILLETS FOR NITRIDING (METRIC)
This specification is approved for usc by all Departments and Agencies
of the Department of the Defense.
1.
SCOPE
1.1 Scope. This specification covers alloy steel bars, billets and
forgings for nitriding, and requirements for finished components.
1.2 Classification.
Nitriding steel shall be of the following classes,
conditions, and finishes,
as specified (see 6.2).
Classes
Class A (135M) - Nitriding steel (modified)
Class B (Ez)
- Nitriding steel (free machining)
Class C (N)
- Nitriding steel (nickel)
Class D (135G) -
Nitriding steel (standard)
Condition 1
- As rolled, not heat treated (bars and billets)
Condition 2 -
Quenched and tempered (bars and forgings)
Condition 3 -
Annealed (bars and forgings)
Condition 4
- Normalized and tempered
Type I - As forged or as rolled
Type 11 - Pickled or blast cleaned
Type 111 - Rough turned
Type IV
- Cold drawn
Type V - Turned, ground and polished
Beneficial comments (recommendations, additions, deletions) and any pertinent
data which may be of use
in improving this document should be addressed to:
Commander,
Naval Sea Systems Command,
SEA 5523, Department of the Navy,
Washington, DC 2(1362-5{01by using the self-addressed Standardization Document
Improvement Proposal (DD Form 1426) appearing
at the end ~~fthis document
or by letter.
AMSC N/A
AREA FORG
DISTRIBUTION STATEMENT A Approved for public release; distribution un~irnited
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