National Stock Number
2530-01-155-5731
National Stock Number (NSN) 2530-01-155-5731, or NIIN 011555731, (valve,relay,air pressure) was assigned June 11, 1983 in the Federal Logistics Information System (FLIS). NIIN 011555731 was cancelled on December 2, 2000, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820012679682. This NSN replaces 2 stock numbers: 2530009727162, 2530011972052.
There are no manufacturer part numbers associated to this NSN. ISO Group has several sources of supply for 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) 36296. [A VALVE SPECIFICALLY DESIGNED FOR INSTALLATION IN AN AIR BRAKE SYSTEM. IT IS USED ON TRAILERS, LONG WHEEL BASE VEHICLES, AS WELL AS MULTIPLE REAR AXLE VEHICLES. IT SERVES TO SPEED AND SYNCHRONIZE THE APPLICATION AND RELEASE OF AIR OPERATED SERVICE OR PARKING BRAKES. IT MAY INCLUDE EMERGENCY FEATURES FOR TRAILER APPLICATION.]. 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 information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 2530011555731 does not contain precious metals.
This information was last updated on Jul 01, 2025.