NSN 4820-00-999-7545, 4820009997545
VALVE ASSEMBLY,AIR

Federal Supply Classification: FSC 4820 - Valves, Nonpowered
National Item Identification Number: NIIN 009997545
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 4820-00-999-7545

National Stock Number (NSN) 4820-00-999-7545, or NIIN 009997545, (valve assembly,air) was assigned March 16, 1966 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are 3 manufacturer part numbers 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 4820009997545 does not contain precious metals.

This NSN is associated to Schedule B 8481909090: parts of taps, cocks, valves and similar appliances, nesoi. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.

This information was last updated on Jul 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) SCREW CAP HEAGON HEAD W/HEAGON BOLTS STEEL,CADMIUM PLATED,0.438 IN.14,UNC 2A 0.750 IN.LG,WASHER,FLAT RD STEEL 0.469 IN.ID 0.922 IN.OD 0.065 THK,RETAINER SCREW MACHINE FLAT COUNTERSUNK HEAD,BRASS 0.312-18 UNC 2A 2.000 IN.LG,VALVE CLOSURE,SCREW MACHINE BRASS 0.250 IN.-20 UNC 2A 0.750 IN.LG,WASHER LOCK FLAT NUT PLAIN,HEXAGON JAM BRASS,ROD RETURN,SPRING,WASHER,HEAD,DIAPHRAGM,PLATE PRESSURE,SCREW CAP HEXAGON HEAD STEEL,CARBON,CADMIUM PLATED 0.250 IN.-28,WASHER,LOCK SPRING,BALL CHECK ASSEMBLY