NSN 4820-01-213-8065, 4820012138065
TAILPIECE,RELIEF VALVE

Federal Supply Classification: FSC 4820 - Valves, Nonpowered
National Item Identification Number: NIIN 012138065
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 4820-01-213-8065

National Stock Number (NSN) 4820-01-213-8065, or NIIN 012138065, (tailpiece,relief valve) was assigned July 31, 1985 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are 5 manufacturer part numbers associated with this NSN. 2 of those 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 unique to one weapons system.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 02, 2005, this NSN's acquisition method was noted as: Suitable for competitive acquisition for the first time. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

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 4820012138065 does not contain precious metals.

This information was last updated on Apr 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) CU-NI PER MIL-C-20159B;500.0 PSI;VALVE SIZE 2.500 IN.;ENDS FLANGED;ONE END OD 6.125 IN.;6 HOLES 0.688 IN. DIA EQUALLY SPACED ON 5.000 IN. BCD;OTHER END 6 HOLES 0.812 IN.EQUALLY SPACED ON 5.000 BCD;ONE END AT ANGLE TO OTHER;FACE TO CENTER LINE 5.500 IN.