National Stock Number (NSN) 5330-00-530-2772, or NIIN 005302772, (packing with retainer) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 5 stock numbers: 4310010499984, 5330005513397, 5330008117591, 5330002908154, 5330006409362.
There are 12 manufacturer part numbers associated with this NSN. 9 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 13 suppliers. Today, 12 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 7 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 15 contracts issued for this part number, with 13 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 10 different suppliers. The last contract numbers awarded were: SPE7L325P4336, SPEHA624P0088, SPE7L324P2484, SPE7L324P2484, SPE4A623PL636. The total value of the awarded contracts has been US$ 159,397.96.
This NSN is very common among different weapons systems, belonging to 25 different platforms.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 18, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 05680. [AN ITEM COMPOSED OF A COMPRESSIBLE NONMETALLIC RING WHICH MAY BE LOOSELY FITTED INTO A NONCOMPRESSIBLE RETAINING RING, OR MAY BE OF ONE PIECE CONSTRUCTION WITH THE COMPRESSIBLE RING MOLDED AND/OR MECHANICALLY CONNECTED TO THE RETAINER. IT IS SPECIFICALLY DESIGNED TO FORM A FLUID TIGHT SEAL WHEN COMPRESSED BY A PACKING NUT, GLAND, AND THE LIKE, BETWEEN FIXED SURFACES AND A CYLINDRICAL ITEM PASSING THROUGH IT. EXCLUDES:SEAL,PLAIN,ENCASED.]. This item is a Flight Safety Critical Aircraft Part (FSCAP). 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 5330005302772 contains an unknown precious metal.
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 Jul 01, 2025.