National Stock Number
6650-01-344-3570
National Stock Number (NSN) 6650-01-344-3570, or NIIN 013443570, (borescope) was assigned August 27, 1991 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number 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, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 21654. [A VIEWING DEVICE USED TO VISUALLY INSPECT ITEMS SUCH AS CANNON BORES, INTERNAL COMBUSTION ENGINE CYLINDER WALLS, PROPELLANT PERFORATIONS OF ROCKET MOTORS, OR SIMILAR ITEMS FOR DEFECTS OF MANUFACTURE, CORROSION, SCARS, EROSION, AND THE LIKE, WITHOUT NEEDING TO DISASSEMBLE THE ITEM(S). IT MAY OR MAY NOT HAVE EXTENSION TUBES TO COVER THE VARIOUS RANGES OF INSPECTION. THE ITEM IS USUALLY A STRAIGHT-TUBE TELESCOPE, BUT IT COULD BE FLEXIBLE, USING A MIRROR OR PRISM ON ITS END.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6650013443570 contains an unknown precious metal.
This NSN is associated to Schedule B 9018500000: other ophthalmic instruments and appliances and parts and accessories. The Schedule B End Use is listed as medicinal equipment. NAICS classification category 339112: surgical and medical instrument manufacturing.
This information was last updated on Jul 01, 2025.