National Stock Number
6640-00-653-8517
National Stock Number (NSN) 6640-00-653-8517, or NIIN 006538517, (test kit,leakage,oxygen mask and) was assigned January 1, 1963 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 14494. [A COLLECTION OF ITEMS SUCH AS BURETTES, LEVELING BULBS, FLASKS, BEAKERS, VARIOUS CHEMICALS, AND ACCESSORIES REQUIRED FOR USE IN TESTING THE LEAKAGE OF AIR INTO OXYGEN MASKS AND REGULATORS WHILE IN ACTUAL USE.]. 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 6640006538517 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.