IMEEl
DOD-F-24669/7
7 July 1986
SUPERSEDING ‘-—
MIL-S-861A(SHIPS)
10 January 1955
MILITARY SPECIFICATION
FORGINGS AND FORGING STOCK, STEEL BARS
AND BILLETS, CORROSION RESISTING;
NAVAL STEAM TURBINE PmTs usE (M13TRIc)
This specification is approved for use by all Departments and Agencies
of the Department of the Defense.
1. SCOPE
1.1 Scope. This specification covers corrosion-resisting steel bars for
naval steam turbine parts and quality assurance provisions for finished turbine
blades.
1.2 Classification.
Bars shall be of the following classes and conditions,
as specified (see 6.2).
Class 403
Condition AN - Annealed
Condition HT - Heat-treated
Class 405
Condition AN - Annealed
Class 410
Condition AN - Annealed
Condition HT - Heat-treated
Class 422
Condition AN -
Annealed (forging stock only)
Condition HT - Heat-treated
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 55Z3, Department of the Navy,
Washington, DC 20362-5101 by using the self-addressed Standardization Document
Improvement Proposal (DD Form 1426) appearing at the end of this document or
by letter.
AMSC N/A
AREA FORG
DISTRIBUTION STATEMENT A Approved for public release;
distribution unlimited
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