National Stock Number
1240-01-315-2923
National Stock Number (NSN) 1240-01-315-2923, or NIIN 013152923, (periscope subassembly) was assigned February 14, 1990 in the Federal Logistics Information System (FLIS). This NSN replaces 1 stock number, 2040012883275.
There are 4 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 14, 1995, 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) 00607. [TWO OR MORE DIFFERENT TYPES OF ITEMS HAVING A COMMON MOUNTING OR MOUNTED ON EACH OTHER WHICH TOGETHER FORM A PORTION OF A PERISCOPE SUBASSEMBLY BUT WHICH IN ITSELF IS NOT A COMPLETE FUNCTIONING ITEM AND CANNOT BE ASSIGNED A MORE DEFINITE ITEM NAME.]. The item is a non-aviation Critical Safety Item (CSI) whose failure will result in serious damage to equipment or serious injury or death to personnel. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1240013152923 does not contain precious metals.
This information was last updated on Aug 01, 2025.