National Stock Number
5330-21-920-2787
National Stock Number (NSN) 5330-21-920-2787, or NIIN 219202787, (ring,wiper) has an unknown assigned date. NIIN 219202787 was cancelled on June 2, 2016, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 3040219205026. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, there are no suppliers listed as an Active supplier 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 Jun 12, 2020. There have been 13 contracts issued for this part number, with 13 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 9 different suppliers. The last contract numbers awarded were: SPE7L120V3122, SPE7L320V0920, SPE7L319V8721, SPE7L318V9062, SPE7L318V9062. The total value of the awarded contracts has been US$ 98,088.39.
This NSN is unique to one weapons system.
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) 20256. [A CIRCULAR, SINGLE OR MULTIPIECE, RIGID, METALLIC OR NONMETALLIC ITEM HAVING A CENTRALLY LOCATED HOLE WITH A SHARP EDGE ON THE INSIDE PERIPHERY. IT IS SUPPLIED IN VARIOUS CROSS-SECTIONAL SHAPES AND IS DESIGNED TO BE INSTALLED IN A CYLINDER, SHOCK STRUT, OR SIMILAR DEVICE TO REMOVE EXCESS OIL, DIRT, ICE, AND/OR FOREIGN MATERIAL FROM A PISTON, RAM, OR SLIDING ROD. EXCLUDES:PACKING, PREFORMED; RING, PISTON; AND SEAL RING, METAL.].
This information was last updated on Jan 07, 2026.