National Stock Number
4820-01-355-8977
National Stock Number (NSN) 4820-01-355-8977, or NIIN 013558977, (valve,safety relief) was assigned March 26, 1992 in the Federal Logistics Information System (FLIS). NIIN 013558977 was cancelled on April 2, 1997, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4820013291216. This NSN replaces 1 stock number, 4820012864478.
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) 05488. [A VALVE DESIGNED TO AUTOMATICALLY RELEASE EXCESSIVE PRESSURES. IT IS ACTUATED BY STATIC PRESSURE UPSTREAM OF THE VALVE AND IS USED AS A SAFETY VALVE OR RELIEF VALVE, AND MAY BE SET TO CLOSE AT A PREDETERMINED PRESSURE. IT IS NOT DESIGNED FOR REGULATION OF CONTINUOUSLY FLUCTUATING LOADS. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN. EXCLUDES:VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820013558977 does not contain precious metals.
This information was last updated on May 01, 2025.