National Stock Number
5330-25-138-3977
National Stock Number (NSN) 5330-25-138-3977, or NIIN 251383977, (gasket) 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 a year. There have been 9 contracts issued for this part number, with 8 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE7L324V5914, SPE7L122V3834, SPE5EK20P2189, SPE5E115V0827, SPM5EM13M3205. The total value of the awarded contracts has been US$ 9,811.41.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 04522. [A DEFORMABLE MATERIAL WHICH PREVENTS THE PASSAGE OF MATTER THROUGH THE JOINT FORMED WHEN TWO FACES ARE JOINED. IT MAY BE METALLIC OR NONMETALLIC, LUBRICATED OR IMPREGNATED, SOLID OR HOLLOW CROSS SECTION. IT MAY BE MADE TO ANY PREDETERMINED DIMENSION AND SHAPE. EXCLUDES:FLAT DISKS, ITEMS MADE OF FELT MATERIAL AND ITEMS HAVING JOINTS. FOR ROUND METAL AND PLASTIC ITEMS WITH AN APERTURE AND A SOLID RECTANGULAR CROSS SECTION, SEE WASHER, FLAT; SHIM; BEARING, WASHER, THRUST; AND SPACER RING. EXCLUDES:DISK, VALVE; SEAL, NONMETALLIC ANGLE; SEAL, NONMETALLIC CHANNEL; SEAL, NONMETALLIC SPECIAL SHAPED SECTION; SHIELDING GASKET, ELECTRONIC; AND RING, SEALING JAR.].
This information was last updated on Feb 06, 2026.