National Stock Number
3040-00-756-1770
National Stock Number (NSN) 3040-00-756-1770, or NIIN 007561770, (clamp,hub) was assigned January 1, 1962 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 6 stock numbers. Five of the National Stock Numbers that it replaces are: 3040003894903, 3040007375959, 3040002513416, 5340001138138, 5340006473370.
There are 21 manufacturer part numbers associated with this NSN. 5 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 13 suppliers. Today, 9 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 5 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Feb 09, 2018. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7L018V3214. The total value of the awarded contracts has been US$ 790.50.
This NSN is very common among different weapons systems, belonging to 36 different platforms.
There has been very little 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 Mar 21, 2007, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (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) 27781. [AN ITEM DESIGNED TO BE MOUNTED AROUND THE EXTENDED HUB PORTION OF A GEAR, WHEEL, OR THE LIKE, TO RETAIN IT SECURELY TO A SHAFT BY COMPRESSING THE SLOTTED HUB BODY. THE ITEM MAY ALSO BE USED TO CLAMP AROUND A SHAFT, OR THE LIKE, TO PREVENT END MOTION OR TO RETAIN IT IN POSITION. ITS COMPRESSION QUALITY IS DERIVED FROM A SCREW(S) OR BOLT(S) WHICH MAY BE A PART OF THE ITEM OF SUPPLY. FOR ITEMS DESIGNED TO SECURE DIRECTLY TO A SHAFT BY USE OF SETSCREWS, PINS, OR THE LIKE, SEE COLLAR, SHAFT. EXCLUDES:CLAMP, LOOP.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 3040007561770 does not contain precious metals.
This information was last updated on Jul 01, 2025.