NSN 2805-00-533-6401, 2805005336401
Cancelled -> Replaced by 4820005376292

Federal Supply Classification: FSC 2805 - Gasoline Reciprocating Engines, Except Aircraft; and Components
National Item Identification Number: NIIN 005336401
Codification Country: United States
Item Name Code: INC 77777
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

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DLMS^® Summary

National Stock Number 2805-00-533-6401

National Stock Number (NSN) 2805-00-533-6401, or NIIN 005336401, (valve,metering crankcase) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NSN replaces 2 stock numbers: 4820005376292, 2805003542083.

There are 5 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 7 suppliers. Today, 5 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 77777. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2805005336401 contains an unknown precious metal.

This information was last updated on Jul 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) 2.187 IN. O/A LG,HEX HEAD 0.812 IN. OD,1/4-18 NPT ON INTAKE MANIFOLD END,OTHER END OF VALVE TO CRANKCASE,ORIFICE 0.088 IN. DIA,VALVE TRAVEL 0.023 IN.,VALVE MUST BE CLOSED WHEN EXTERNAL THREADED END IS SUBJECTED TO VACUUM OF 16 INCHES OF MERCURY
GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) 42.187 IN. O/A LG,HEX HEAD 0.812 IN. OD,1/4-18 NPT ON INTAKE MANIFOLD END,OTHER END OF VALVE TO CRANKCASE,ORIFICE 0.088 IN. DIA,VALVE TRAVEL 0.023 IN.,VALVE MUST BE CLOSED WHEN EXTERNAL THREADED END IS SUBJECTED TO VACUUM OF 16 INCHES OF MERCURY