National Stock Number
4240-00-021-8695
National Stock Number (NSN) 4240-00-021-8695, or NIIN 000218695, (hood,chemical-biological mask) was assigned January 1, 1961 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) 28008. [A COVERING FOR THE HEAD, NECK, AND SHOULDERS, DESIGNED TO FIT OVER A CHEMICAL-BIOLOGICAL MASK WITHOUT INTERFERENCE WITH WEARER'S VISION OR WITH AIR CIRCULATION THROUGH THE FILTERING AND OUTLET MECHANISM OF THE MASK. IT PROVIDES ADDITIONAL PROTECTION AGAINST CHEMICAL AND BIOLOGICAL TOXIC AGENTS.]. This item does not have a critical feature 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 4240000218695 does not contain precious metals.
This NSN is associated to Schedule B 6506100090: safety headgear, whether or not lined or trimmed, n.e.s.o.i.. The Schedule B End Use is listed as apparel,household goods-nontextile. NAICS classification category 339113: surgical appliance and supplies manufacturing.
This information was last updated on Aug 01, 2025.