National Stock Number (NSN) 5975-01-280-3556, or NIIN 012803556, (locknut,electrical conduit) was assigned June 8, 1988 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is 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 Sep 04, 2013. 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: SPE4A613VM664. The total value of the awarded contracts has been US$ 103.36.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
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 Sep 02, 2006, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 22895. [AN ITEM HAVING INTERNAL THREADS DESIGNED TO FIT THE EXTERNAL THREADS OF AN ELECTRICAL CONDUIT OR FITTING FOR CONNECTING TO A JUNCTION BOX, PANEL, WIREWAY, OR OTHER POINT OF TERMINATION, AND WHICH, WHEN INSTALLED, PROVIDES A METHOD OF TIGHTENING TO LOCK THE CONNECTION. THE ITEMS MAY BE EITHER FLAT-SIDED OR CIRCULAR IN EXTERNAL SHAPE AND MUST HAVE A SPECIFIC CONDUIT SIZE DESIGNATION. SEE BONDNUT, ELECTRICAL CONDUIT AND LOCKNUT, TUBE FITTING. EXCLUDES:NUT (1), PLAIN HEXAGON.]. 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 5975012803556 does not contain precious metals.
This NSN is associated to Schedule B 8543909000: electrical machines and apparatus parts, nesoi. The Schedule B End Use is listed as electric apparatus. NAICS classification category 335999: all other miscellaneous electrical equipment and component manufacturing.
This information was last updated on Aug 01, 2025.