National Stock Number
4820-01-212-9985
National Stock Number (NSN) 4820-01-212-9985, or NIIN 012129985, (valve,vent) was assigned July 20, 1985 in the Federal Logistics Information System (FLIS). NIIN 012129985 was cancelled on March 2, 1999, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820013475047. 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.]. 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 data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820012129985 does not contain precious metals.
This information was last updated on May 01, 2025.