National Stock Number
5970-00-997-2571
National Stock Number (NSN) 5970-00-997-2571, or NIIN 009972571, (insulator,washer) was assigned April 13, 1967 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN. 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.
This NSN is unique to one weapons system.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries.
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 5970009972571 does not contain precious metals.
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.