National Stock Number
2520-01-123-1313
National Stock Number (NSN) 2520-01-123-1313, or NIIN 011231313, (transmission,hydraulic,vehicular) was assigned December 6, 1981 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 2520011226031.
There are 5 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 3 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 unique to one weapons system.
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. (Potential sources shall include dealers/distributors.) The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 52064. [A DEVICE USED ON VEHICULAR POWER TRANSMISSION COMPONENTS TO INCREASE TORQUE AND/OR CHANGE RATIOS BETWEEN THE DRIVE AND DRIVEN SHAFT OR SHAFTS BY THE MEDIUM OF LIQUID UNDER PRESSURE WITHIN THE UNIT. IT MAY INCLUDE A MANUAL MEANS FOR REVERSING ROTATION AND CHANGING SPEED RANGES. EXCLUDES TRANSMISSION, CROSS-DRIVE; AND TRANSMISSIONS WITH CONTROLLED DIFFERENTIALS.]. 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 2520011231313 does not contain precious metals.
This NSN is associated to Schedule B 8483909500: parts, nesoi, of bearing housings & plain shaft bearings, housed bearings, clutches, universal joints, flywheels and transmission shafts. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 333613: mechanical power transmission equipment manufacturing.
This information was last updated on Aug 01, 2025.