National Stock Number (NSN) 5975-00-265-7772, or NIIN 002657772, (reducing washer,knockout) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 5975001061476, 5310001940000.
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 9 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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 02, 2020. There have been 8 contracts issued for this part number, with 8 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 6 different suppliers. The last contract numbers awarded were: SPE4A620V4657, SPM4A611VD131, SPM4A611VB889, SPM4A611MGQ38, SPM4A611V4507. The total value of the awarded contracts has been US$ 853.13.
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 Aug 15, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government does not have adequate data, lacks rights to data, or both, needed to purchase this part from additional sources. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 06937. [AN ITEM CONSISTING OF A FLAT, CUPPED OR EMBOSSED METALLIC DISK WITH A CENTERHOLE TO FIT AN ELECTRICAL CONDUIT OF A SPECIFIED SIZE AND WHICH IS SPECIFICALLY DESIGNED TO REDUCE THE KNOCKOUT OPENING IN A BOX, PANEL, OR WIREWAY FOR THE CONVENIENCE OF TERMINATING ELECTRICAL CONDUIT OF SMALLER SIZE THAN THE KNOCKOUT. EXCLUDES:ADAPTER, ELECTRICAL CONDUIT.]. 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 5975002657772 does not contain precious metals.
This NSN is associated to Schedule B 7318220000: washers other than lock washers, iron or steel. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.
This information was last updated on Aug 01, 2025.