National Stock Number
5330-12-159-2171
National Stock Number (NSN) 5330-12-159-2171, or NIIN 121592171, (seal,plain) has an unknown assigned date. This NSN does not replace any other NSNs.
There are 10 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 8 suppliers. Today, 7 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Nov 08, 2018. There have been 2 contracts issued for this part number, with 2 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE5EM19V0870, SPE5EM19V0377. The total value of the awarded contracts has been US$ 410.80.
This NSN is unique to one weapons system.
There has been very little 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) 04250. [A PLIABLE RUBBER OR COMPOSITION RING-SHAPED ELEMENT, SPLIT OR JOINTLESS (SOLID) NOT ENCASED IN A METAL SHELL, BUT HAVING A SPRING, SPREADER AND/OR MOLDED-IN REINFORCEMENT. IT IS DESIGNED TO BE PRESSMOUNTED BETWEEN FIXED AND MOVABLE OR MOVING PARTS TO FORM A TIGHT AND EFFECTIVE SEAL.].
This information was last updated on Nov 28, 2025.