National Stock Number (NSN) 5970-00-715-8221, or NIIN 007158221, (insulator,bead) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5970000534373.
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 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over a year. There have been 3 contracts issued for this part number, with 3 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE4A622V037T, SPE4A622PA368, SPE4A622PA368, SPE4A616MH951, SPE4A616MH951. The total value of the awarded contracts has been US$ 5,355.76.
This NSN is somewhat common among different platforms, belonging to 4 different weapons systems.
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 Jan 09, 2015, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 18299. [AN INSULATOR SPECIFICALLY DESIGNED TO BE USED AS A SPACER IN, OR IN CONJUNCTION WITH, SUCH ITEMS AS COAXIAL CABLES, TRANSMISSION LINES, BRUSH SHUNTS, TEST LEADS, HIGH VOLTAGE LINES AND THE LIKE. HAS AN AXIAL HOLE THROUGH WHICH THE WIRE PASSES AND THE LENGTH OF WHICH IS CONSIDERABLY MORE THAN 25 PERCENT OF THE LARGEST DIAMETER PERPENDICULAR TO THE HOLE. THE EXTERNAL SHAPES MAY BE VARIATIONS OF CYLINDRICAL AND SPHERICAL SHAPES.]. 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 5970007158221 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.