NSN 2530-00-521-4978, 2530005214978
Cancelled -> Replaced by 2530004540652

Federal Supply Classification: FSC 2530 - Vehicular Brake, Steering, Axle, Wheel, and Track Components
National Item Identification Number: NIIN 005214978
Codification Country: United States
Item Name Code: INC 36146
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (P) 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.

Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 2530-00-521-4978

National Stock Number (NSN) 2530-00-521-4978, or NIIN 005214978, (piston,hydraulic brake) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 2530004540652, 2530003775542.

There are 26 manufacturer part numbers associated with this NSN. 18 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 25 suppliers. Today, 16 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 9 suppliers 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 Sep 02, 2005, this NSN's acquisition method was noted as: Suitable for competitive acquisition for the first time. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 36146. [A METALLIC OR NONMETALLIC ITEM DESIGNED TO FUNCTION IN A WHEEL CYLINDER OR CALIPER OF A HYDRAULIC BRAKE SYSTEM.]. 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 2530005214978 contains an unknown precious metal.

This NSN is associated to Schedule B 8708300050: brakes and servo-brakes and parts, of motor vehicles of headings 8701 to 8705. The Schedule B End Use is listed as other parts and accessories of vehicles. NAICS classification category 336340: motor vehicle brake system manufacturing.

This information was last updated on Aug 01, 2025.