National Stock Number (NSN) 5330-01-672-1777, or NIIN 016721777, (packing,preformed) was assigned April 24, 2018 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over a year. There have been 4 contracts issued for this part number, with 4 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A524F5473, SPE4A524F2833, SPE5EM20F0092, SPE5EM20F0092, SPE5EM19F0097. The total value of the awarded contracts has been US$ 17,300.14.
This NSN is somewhat common among different platforms, belonging to 3 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. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 2,471. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 24, 2018, this NSN's acquisition method was noted as: Acquire, for the first time, directly from the actual manufacturer rather than the prime contractor who is not the actual manufacturer. The rights to use the data needed to purchase this part from additional sources are not owned by the Government and cannot be purchased. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 04521. [A CIRCULAR SHAPED ITEM WITH AN APERTURE MANUFACTURED TO PREDETERMINED DIMENSIONS AND DESIGNED FOR USE AS A SEAL IN STUFFING BOXES, PACKING NUTS, AND THE LIKE. IT MAY BE (1) ANY NONMETALLIC MOLDED OR FORMED RING (EXCEPT SOLID (WITHOUT JOINT) RINGS HAVING A SQUARE OR RECTANGULAR CROSS SECTION); OR (2) ANY SHREDDED METAL OR METAL FOIL TYPE METALLIC OR SEMIMETALLIC RINGS. EXCLUDES:FELT ITEMS BUT INCLUDES MULTIMATERIAL ITEMS IN WHICH ONE OF THE MATERIALS IS FELT. FOR SOLID (WITHOUT JOINTS) NONMETALLIC ITEMS WITH A SQUARE OR RECTANGULAR CROSS SECTION, SEE WASHER (AS MODIFIED) AND GASKET. FOR RUBBER ITEMS SPECIFICALLY DESIGNED FOR WEATHER-PROOFING DOORS, WINDOWS, CHESTS, AND THE LIKE SEE SEAL, NONMETALLIC ANGLE; SEAL, NONMETALLIC CHANNEL; AND SEAL, NONMETALLIC, SPECIAL SHAPED SECTION. FOR CIRCULAR (WITH APERATURE) NONMETALLIC ITEMS WITH A SOLID ROUND CROSS-SECTION SEE O-RING. EXCLUDES:CUP, COMPRESSION; GASKET; WASHER (AS MODIFIED); AND FELT, MECHANICAL, PREFORMED.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 5330016721777 does not contain precious metals.
This NSN is associated to Schedule B 3926904500: gaskets,washers & other seals. The Schedule B End Use is listed as other industrial supplies. NAICS classification category 339991: gasket, packing, and sealing device manufacturing.
This information was last updated on Aug 01, 2025.