National Stock Number (NSN) 1630-01-035-6311, or NIIN 010356311, (rotor assembly,disc brake) was assigned February 12, 1977 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 7 suppliers. Today, 5 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 13 contracts issued for this part number, with 13 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE4A725P6602, SPE4A725P6602, SPE4A719F5401, SPE4A719F4835, SPE4A719F0818. The total value of the awarded contracts has been US$ 2,357,520.07.
This NSN is unique to one weapons system.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 03, 2013, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 37477. [A FLAT CIRCULAR METALLIC DEVICE WITH A CENTER MOUNTING AREA OF VARIOUS CONFIGURATION (RECESSED, FLAT, PROTRUDING, SHOULDERED, AND THE LIKE), IT ALSO INCLUDES THE MATING HUB, AND MAY INCLUDE ITEMS SUCH AS ROLLER CUPS, STUDS, AND THE LIKE. IT IS A COMPONENT OF A CALIPER TYPE BRAKE SYSTEM DESIGNED WITH A FLAT MACHINE BRAKING SURFACE WHICH MAY BE OF A SOLID, RIBBED OR SPACE DESIGNED FOR COOLING PURPOSES. FOR A ROTOR WITHOUT A HUB SEE ROTOR, DISK 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 1630010356311 does not contain precious metals.
This information was last updated on Aug 01, 2025.