National Stock Number
4820-01-177-4518
National Stock Number (NSN) 4820-01-177-4518, or NIIN 011774518, (valve,air pressure relief) was assigned April 25, 1984 in the Federal Logistics Information System (FLIS). NIIN 011774518 was cancelled on April 2, 2004, 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 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, there are no suppliers that are 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) 11406. [INC 11406 CANCELLED/REPLACED BY ,INC 35935, FIIG A046B0, APP-KEY AA ,ON 012712 ~(ALL EXCEPT USA) THIS PREVIOUSLY DELETED INC HAS BEEN REINSTATED FOR FILE MAINTENANCE ONLY.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820011774518 does not contain precious metals.
This information was last updated on Jul 01, 2025.