National Stock Number
5970-01-179-8780
National Stock Number (NSN) 5970-01-179-8780, or NIIN 011798780, (insulator,washer) was assigned May 22, 1984 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 5 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, there are no suppliers that 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 1991, this NSN's acquisition method was noted as: Acquire only from the prime contractor although the engineering data identifies the Commercial and Government Entity Code (CAGE) and part number of a source other than the prime contractor. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) 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 has critical features such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). 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 5970011798780 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.