National Stock Number
2530-01-155-5820
National Stock Number (NSN) 2530-01-155-5820, or NIIN 011555820, (spider,brake) was assigned June 11, 1983 in the Federal Logistics Information System (FLIS). NIIN 011555820 was cancelled on April 30, 2010, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 36504. [A METALLIC CAST CIRCULAR DEVICE, DESIGNED TO TRANSFER TORQUE LOAD DIRECTLY INTO THE HOUSING, RELIABILITY OF THE BRAKE AND PERMITTING UNRESTRICTED AIR CIRCULATION FOR MAXIMUM COOLING. IT ALSO REDUCES BRAKE FADE AND EXTENDS LINING LIFE FOR HEAVY DUTY AIR BRAKE SYSTEM. EXCLUDES PLATE, BACKING, BRAKE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. 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 2530011555820 does not contain precious metals.
This information was last updated on Aug 01, 2025.