National Stock Number
4820-01-305-7857
National Stock Number (NSN) 4820-01-305-7857, or NIIN 013057857, (valve,vent) was assigned August 11, 1989 in the Federal Logistics Information System (FLIS). NIIN 013057857 was cancelled on April 2, 1997, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4820012860198. 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) 35935. [A VALVE DESIGNED TO RELIEVE INTERNAL PRESSURE FROM GEAR HOUSINGS, AUTOMOTIVE AXLES, DIFFERENTIALS, TRANSMISSIONS AND THE LIKE. MAY OR MAY NOT BE THREADED ON ONE END. FOR ITEMS WITH RELIEF PRESSURE RATINGS SEE VALVE (1), SAFETY RELIEF.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820013057857 does not contain precious metals.
This information was last updated on Jul 01, 2025.