National Stock Number
4240-01-599-0501
National Stock Number (NSN) 4240-01-599-0501, or NIIN 015990501, (support assembly,entrance protec) was assigned September 12, 2011 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) 42332. [AN ITEM, USUALLY MTEALLIC, OF VARIOUS SHAPES AND SIZES, SPECIFICALLY DESIGNED TO PROVIDE SUPPORT FOR THE ENTRANCE, PROTECTIVE, PRESSUREZED.]. 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 4240015990501 does not contain precious metals.
This information was last updated on Jul 01, 2025.