NSN 4820-01-091-8125, 4820010918125
RETAINER,BONNET

Federal Supply Classification: FSC 4820 - Valves, Nonpowered
National Item Identification Number: NIIN 010918125
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.

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DLMS^® Summary

National Stock Number 4820-01-091-8125

National Stock Number (NSN) 4820-01-091-8125, or NIIN 010918125, (retainer,bonnet) was assigned March 13, 1980 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN. ISO Group has several sources of supply for this NSN.

This part number has not been procured by the US Government in over 5 years.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 02, 2004, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (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 4820010918125 contains an unknown precious metal.

This information was last updated on Jul 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) CARBON STEEL PER ASTM-A-515,GRADE 70; RAISED FACE FLANGE TYPE,7.375 IN,5.371 IN. RAISED FACE OD; INTERNALLY THD BORE,4.375 IN.-8,RH,ACME THD SIZE 2G; 6 QTY OFHOLES 4 INTERNALLY THD HOLES 0.62S 0.625 IN.-11,UNC,RH THD SIZE SPACED ON 6.125 IN. BC DIA,2 INTERNALLY THD HOLES 0.750 IN. DEEP,0.625 IN.-11,UNC RH THD SIZE SPACED 6.125 IN. BC DIA; FLAT SEATING SURFACE; PART OF 5 IN. SIZE VALVE