NSN 4820-00-353-2022, 4820003532022
FLAPPER,VALVE,COMPRESSOR AIR

Federal Supply Classification: FSC 4820 - Valves, Nonpowered
National Item Identification Number: NIIN 003532022
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 4820-00-353-2022

National Stock Number (NSN) 4820-00-353-2022, or NIIN 003532022, (flapper,valve,compressor air) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are 4 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 2 suppliers are listed as Active suppliers 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 4820003532022 contains an unknown precious metal.

This information was last updated on Aug 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) SWEDISH FLAPPER VALVE QUALITY STEEL;1.422 IN. O/A LG,0.374 IN. W,0.015 IN. MATERIAL THICKNESS,W/ONE HOLE IN SQ END 0.088 IN. DIA 0.127 IN. FROM END TO HOLE CENTER 0.185 IN. FROM SIDE TO HOLE CENTER,OTHER END ROUNDED;ITEM TO BE DEMAGNETIZED AFTER TUMBLING