National Stock Number
3020-00-185-7159
National Stock Number (NSN) 3020-00-185-7159, or NIIN 001857159, (chain,silent) was assigned February 16, 1971 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 6 suppliers. Today, 5 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers are 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 02, 2005, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 04449. [A FLEXIBLE MECHANICAL DEVICE CONSISTING OF INVERTED TOOTH LINKS, WITH OR WITHOUT GUIDE LINKS, AND USED FOR POWER TRANSMISSION. THE LINKS ARE JOINED BY PINS AND MATE WITH THE SPROCKET TEETH WITH A SLIDING ACTION. EXCLUDES:FLEXIBLE MECHANICAL DEVICES SPECIFICALLY DESIGNED FOR USE WITH COUPLING, SHAFT, FLEXIBLE.]. 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 3020001857159 contains an unknown precious metal.
This NSN is associated to Schedule B 7315120000: articulated link chain other than roller chain, of iron or steel. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 333613: mechanical power transmission equipment manufacturing.
This information was last updated on Jul 01, 2025.