National Stock Number
5220-01-689-4529
National Stock Number (NSN) 5220-01-689-4529, or NIIN 016894529, (gage,headspace) was assigned June 22, 2020 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jun 23, 2020, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 52019. [A GAGE USED TO DETERMINE THE ACCEPTABILITY OF HEADSPACE OF A FIREARM.]. 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 5220016894529 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.