NES 381 PT1 : ISSUE 1 AMD 1
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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FORGING AND HEAT TREATMENT OF MAIN PROPULSION GEARS - CARBURIZED AND HARDENED GEARS
01-04-2000
12-01-2013
States requirements for forging and heat treatment of carburized and hardened main propulsion gears in 3% NiCr case hardening steel for use in HM ships and submarines. The forgings will be required for pinions, and wheels/wheel rims which are assumed to be produced by upsetting or as hollow forgings.
| DevelopmentNote |
This document has been redesignated as DEFSTAN 02-381(PT1)/1(2000). (01/2001)
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| DocumentType |
Standard
|
| PublisherName |
Naval Engineering Standards (UK Ministry of Defence)
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| Status |
Superseded
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| SupersededBy |
| DEFSTAN 02-305/1(2000) : 2000 | REQUIREMENTS FOR GEARING - MAIN PROPULSION |
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