NSN 4820-14-540-4912, 4820145404912
RETAINER,SEAT,VALVE

Federal Supply Classification: FSC 4820 - Valves, Nonpowered
National Item Identification Number: NIIN 145404912
Codification Country: France
Item Name Code: INC 48241
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 4820-14-540-4912

National Stock Number (NSN) 4820-14-540-4912, or NIIN 145404912, (retainer,seat,valve) has an unknown assigned date. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

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

This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.

This NSN is assigned to Item Name Code (INC) 48241. [AN ITEM OF VARIOUS SHAPES AND CROSS-SECTIONS, THAT MAY BE FLANGED AND THAT IS DESIGNED TO FIT OVER A VALVE SEAT, ALLOWING PROPER POSITIONING OF THE SEAT WITH A FLOW CONTROL DEVICE.].

This information was last updated on Sep 16, 2026.