National Stock Number (NSN) 5340-01-665-8798, or NIIN 016658798, (cap,protective,dust and moisture) was assigned August 16, 2017 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 one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is 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 Dec 04, 2019. 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: SPE5E820P0797, SPE5E819V4963, SPE5E818V9874, SPE5E818V6184. The total value of the awarded contracts has been US$ 1,639.00.
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. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 03, 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. 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) 13432. [AN ITEM SPECIFICALLY DESIGNED TO FIT OVER THE OPENING(S) OF VARIOUS ITEMS TO PROVIDE MECHANICAL PROTECTION AND/OR TO PREVENT THE ENTRANCE OF FOREIGN MATTER DURING PAINTING, SHIPPING, STORAGE, OR THE LIKE. IT IS NOT DESIGNED TO RETAIN FLUIDS UNDER PRESSURE DURING EQUIPMENT OPERATION. EXCLUDES COVER, ELECTRICAL CONNECTOR; HOOD, SEALING, BOTTLE; AND STOPPER, BOTTLE. FOR ITEMS DESIGNED TO FIT INTO OR OVER THE OPENING(S) OF VARIOUS ITEMS, SEE CAP-PLUG, PROTECTIVE, DUST AND MOISTURE SEAL.]. 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 5340016658798 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.