National Stock Number
5306-00-558-3903
National Stock Number (NSN) 5306-00-558-3903, or NIIN 005583903, (bolt,internal wrenching) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 5 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Mar 02, 2006, 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) 06666. [AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO. 10 (0.190 IN.) (5 MM) OR LARGER. IT IS DESIGNED WITH AN INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE FOR USE WITH AN INTERNAL DRIVER. THE HEAD IS BEVELED (CONICAL) OR CYLINDRICAL IN SHAPE. ITEMS WITH CYLINDRICAL SHAPED HEADS MUST HAVE AN EXTERNALLY RELIEVED BODY. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. SEE ALSO SCREW, CAP, SOCKET HEAD. EXCLUDES:SETSCREW; SCREW, SHOULDER; BOLT, SHOULDER; SCREW, EXTERNALLY RELIEVED BODY; BOLT, EXTERNALLY RELIEVED BODY; AND SCREW, MACHINE.]. 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 5306005583903 contains an unknown precious metal.
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 Aug 01, 2025.