NSN 4820-00-460-6640, 4820004606640
CAP,RELIEF VALVE

Federal Supply Classification: FSC 4820 - Valves, Nonpowered
National Item Identification Number: NIIN 004606640
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 4820-00-460-6640

National Stock Number (NSN) 4820-00-460-6640, or NIIN 004606640, (cap,relief valve) was assigned January 9, 1970 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. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 3 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 4820004606640 contains an unknown precious metal.

This information was last updated on May 01, 2024.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) STEEL,1ST END,THREADED EXTERNAL BOSS CONNECTION,0.740-16 THD,SIZE,UNF,CLASS 2A,RH.,2ND END,UNTHREADED,0.652 IN. OD,0.265 IN. ID.,2 HOLES,0.172 IN. DIA.,DRILLED THROUGH,180.0 DEG SEPARATION,HEXAGONAL WRENCHING FACILITY,0.875 IN. W/ACROSS FLATS BORED 1.570 IN. DEEP FOR 0.312-24 THD. SIZE,UNF,CLASS 2B,RH,2.485 IN. O/A LG.