National Stock Number (NSN) 5306-01-143-1750, or NIIN 011431750, (bolt,eccentric head) was assigned November 28, 1982 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 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 Dec 26, 2019. There have been 9 contracts issued for this part number, with 10 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: SPE5EC20P0197, SPE5EC20P0197, SPE5EC19PQ002, SPE5EC19PQ002, SPE5EC18CF158. The total value of the awarded contracts has been US$ 223,521.27.
This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.
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 Jun 12, 2013, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 21861. [AN EXTERNALLY THREADED FASTENER THE HEAD OF WHICH IS USUALLY FLAT WITH A PERIPHERY NOT CONCENTRIC TO THE BOLT SHANK. THE HEAD IS NOT DESIGNED FOR WRENCHING. IT MAY HAVE A DRIVE FEATURE LOCATED AT THE THREADED END, WHICH CAN BE USED TO ROTATE THE SCREW AND ECCENTRIC HEAD INTO A LOCKING POSITION TO SECURE A FLANGED OR GROOVE COMPONENT.]. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5306011431750 contains silver.
This NSN is associated to Schedule B 7318152000: bolts and bolts and their nuts or washers exported in the same shipment. The Schedule B End Use is listed as iron and steel products, other. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.
This information was last updated on Jul 01, 2025.