National Stock Number (NSN) 5330-00-168-6028, or NIIN 001686028, (packing with retainer) was assigned July 2, 1970 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 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, only one supplier is deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Jan 10, 2013. There have been 2 contracts issued for this part number, with 2 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPM5EJ13M1471, SPM5E012M0614, SPM5E012M0614, SPM5E012M0614. The total value of the awarded contracts has been US$ 9,158.80.
This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.
There has been very little 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 Nov 06, 2012, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. 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 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 5330001686028 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 Jul 01, 2025.