National Stock Number
5120-00-575-1681
National Stock Number (NSN) 5120-00-575-1681, or NIIN 005751681, (lifter,valve spring) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5120003944613.
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, there are no suppliers that 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 assigned to Item Name Code (INC) 05577. [A HAND TOOL DESIGNED TO COMPRESS VALVE SPRINGS ON ENGINES BY LIFTING UP (PUSHING DOWN) ONLY ONE END OF THE VALVE SPRING. SEE ALSO COMPRESSOR, VALVE SPRING.]. 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 5120005751681 does not contain precious metals.
This NSN is associated to Schedule B 8205599000: handtools (including glass cutters) and parts thereof, nesoi, of basemetal. The Schedule B End Use is listed as photo, service industry machinery.
This information was last updated on Aug 01, 2025.