National Stock Number
5970-00-262-1856
National Stock Number (NSN) 5970-00-262-1856, or NIIN 002621856, (insulator,washer) was assigned July 15, 1973 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 4 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 8 suppliers. Today, 5 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Mar 04, 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) 18294. [AN INSULATOR THAT IS ESSENTIALLY THIN AND FLAT, WITH ONE THROUGH HOLE CENTRALLY LOCATED. THE GENERAL SHAPE MAY VARY BY THE ADDITION OF FEATURES SUCH AS BEVELED EDGES, INDENTED SURFACES, THROUGH HOLE KEYS, AND/OR PERIPHERAL FLATS. THE THICKNESS MEASURED BETWEEN THE TWO PARALLEL BEARING SURFACES MUST NOT EXCEED 25 PERCENT OF THE OUTSIDE DIAMETER OR THE SHORTEST DISTANCE BETWEEN PERIPHERAL FLATS. THE THICKNESS MEASURED BETWEEN THE TWO PARALLEL BEARING SURFACES MUST NOT EXCEED 25 PERCENT OF THE OUTSIDE DIAMETER OR THE SHORTEST DISTANCE BETWEEN PERIPHERAL FLATS. EXCLUDES:ITEMS WITH MORE THAN ONE HOLE. SEE ALSO INSULATOR, DISK; INSULATOR, BEAD; INSULATOR, BUSHING; AND INSULATOR, PLATE]. 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 5970002621856 contains an unknown precious metal.
This NSN is associated to Schedule B 8546900000: electrical insulators, nesoi. The Schedule B End Use is listed as electric apparatus. NAICS classification category 326199: all other plastics product manufacturing.
This information was last updated on Aug 01, 2025.