National Stock Number
4820-01-256-0289
National Stock Number (NSN) 4820-01-256-0289, or NIIN 012560289, (head,safety,pressure relief) was assigned May 30, 1987 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 1991, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The rights to use the data needed to purchase this part from additional sources are not owned by the Government and cannot be purchased. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 28139. [AN ITEM OF VARYING SHAPE AND SIZE CONSISTING OF A METALLIC BODY WHICH INCLOSES A NONREUSABLE METALLIC OR NONMETALLIC DISK(S), WHICH IS DESIGNED AND CALIBRATED TO BURST AT A GIVEN PRESSURE. IT MAY BE USED INDEPENDENTLY, OR IN CONJUNCTION WITH RELIEF VALVES TO RELIEVE OVERPRESSURE, AND TO PROTECT RELIEF VALVE(S) FROM CORROSIVE CONDITIONS. EXCLUDES VALVE, SAFETY RELIEF AND PLUG, FUSIBLE. FOR ITEMS FURNISHED WITH A DISK, SEE HEAD AND DISK, SAFETY, PRESSURE RELIER.]. This item has critical features 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 4820012560289 does not contain precious metals.
This NSN is associated to Schedule B 8481909090: parts of taps, cocks, valves and similar appliances, nesoi. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.
This information was last updated on Apr 01, 2024.