National Stock Number (NSN) 5975-01-421-3521, or NIIN 014213521, (junction box) was assigned November 7, 1995 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. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 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 very common among different weapons systems, belonging to 29 different platforms.
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: 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) 06219. [AN ENCLOSURE, OTHER THAN CAST METAL, DESIGNED TO HOUSE, MOUNT, AND PROTECT, BUT DOES NOT INCLUDE WIRING CONNECTIONS OR ELECTRICAL DEVICES SUCH AS TERMINALS AND/OR TERMINAL BOARDS, SWITCHES, JACKS, FUSEHOLDERS, CONNECTORS, CIRCUIT BREAKERS AND THE LIKE. IT IS DESIGNED FOR AND MAY INCLUDE A COVER AND SUCH ACCESSORIES AS MOUNTING HARDWARE, BRACKETS, LOCKS, CLAMPS, MOUNTS AND CONDUIT FITTINGS. EXCLUDES: CONDUIT OUTLET; AND CHAMBER,CABLE TERMINAL. FOR BOXES, WHICH INCLUDE ELECTRICAL DEVICES SUCH AS TERMINALS, TERMINAL BOARDS, SWITCHES, FUSEHOLDERS, JACKS, CONNECTORS, CIRCUIT BREAKERS AND THE LIKE, OR COMBINATIONS THEREOF, SEE SWITCH BOX; FUZE BOX; JACK BOX; TERMINAL BOX; CIRCUIT BREAKER BOX; OR DISTRIBUTION BOX. FOR BOXES WIRED TO PROVIDE THE INTERCONNECTING FACILITIES FOR A SPECIFIC MAJOR GROUP OF ELECTRONIC ITEMS OUTSIDE OF THE BOX, SEE INTERCONNECTING BOX OR INTERCONNECTING CABINET. __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________]. 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 5975014213521 does not contain precious metals.
This NSN is associated to Schedule B 8536908030: electrical junction boxes, for a voltage not exceeding 1,000 v. The Schedule B End Use is listed as electric apparatus. NAICS classification category 335932: noncurrent-carrying wiring device manufacturing.
This information was last updated on Jul 01, 2025.