NSN 4310-00-218-1338, 4310002181338
PLUNGER ASSEMBLY,VALVE,COMPRESSO

Federal Supply Classification: FSC 4310 - Compressors and Vacuum Pumps
National Item Identification Number: NIIN 002181338
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.

Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 4310-00-218-1338

National Stock Number (NSN) 4310-00-218-1338, or NIIN 002181338, (plunger assembly,valve,compresso) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is 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 4310002181338 does not contain precious metals.

This information was last updated on Aug 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) CONSISTS OF BODY,PLUNGER 1; BALL,VALVE 1; INSERT,SEAT 1; PIN BALL HOLDER 1; STEEL O/A; 1.000 IN. OD; 4.093 IN. O/A LG ONE END HAS CHECK VALVE; OTHER END IS SLOTTED AND DRILLED,1 SLOT 0.312 IN. W,0.937 IN. DP; AND 1 HOLE 0.312 IN. DIA,0.406 IN. FROM END