National Stock Number
4240-01-251-5762
National Stock Number (NSN) 4240-01-251-5762, or NIIN 012515762, (cover,speaking diaphragm) was assigned March 21, 1987 in the Federal Logistics Information System (FLIS). NIIN 012515762 was cancelled on June 2, 1998, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. 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) 38507. [AN ITEM MADE OF FLEXIBLE MATERIAL DESIGNED TO FIT AROUND AND PROTECT THE FACEPIECE SPEAKING DIAPHRAGM OF A MASK GAS.]. 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 4240012515762 does not contain precious metals.
This information was last updated on Jul 01, 2025.