National Stock Number
5210-00-221-1921
National Stock Number (NSN) 5210-00-221-1921, or NIIN 002211921, (caliper,micrometer,inside) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 4 stock numbers: 5210013723007, 5180011131574, 5210002211940, 5210006401161.
There are 8 manufacturer part numbers associated with this NSN. 5 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 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. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
There has been a small amount of 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, 1991, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 15272. [A PRECISION ADJUSTABLE END MEASURING INSTRUMENT DESIGNED FOR MAKING ACCURATE INTERNAL LINEAR MEASUREMENTS OF CYLINDERS, RINGS, AND THE LIKE. IT CONSISTS OF A MICROMETER HEAD WITH EITHER EXTENSION RODS OR SLIDE CALIPER-STYLE JAWS.]. 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 5210002211921 does not contain precious metals.
This NSN is associated to Schedule B 9017304000: micrometers and calipers. The Schedule B End Use is listed as measuring, testing, control instruments.
This information was last updated on Aug 01, 2025.