National Stock Number
6635-01-304-4957
National Stock Number (NSN) 6635-01-304-4957, or NIIN 013044957, (comparator,optical projection) was assigned July 19, 1989 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 6635000058514.
There are 6 manufacturer part numbers associated with this NSN. 4 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.
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 Apr 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 18990. [AN INSTRUMENT DESIGNED TO INSPECT OR MEASURE, BY OPTICAL PROJECTION, THE WEAR, TOLERANCE OR DISTORTION OF AN ITEM WHICH IS DIFFICULT OR IMPOSSIBLE TO INSPECT OR MEASURE DIRECTLY.]. 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 6635013044957 does not contain precious metals.
This NSN is associated to Schedule B 9027803500: physical analysis instruments and apparatus, except using optical radiations, nesoi. The Schedule B End Use is listed as laboratory testing instruments. NAICS classification category 334516: analytical laboratory instrument manufacturing.
This information was last updated on Jul 01, 2025.