National Stock Number (NSN) 3950-00-431-9997, or NIIN 004319997, (winch,drum,hand operated) was assigned May 14, 1974 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 4 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is 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 a year. There have been 4 contracts issued for this part number, with 4 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE8EE22V1056, SPM8EE13V0402, SPM8EE10M0542, SPM8EE10M0420. The total value of the awarded contracts has been US$ 3,983.52.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
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 Mar 27, 2013, 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 data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 08654. [A MANUALLY OPERATED MECHANICAL DEVICE HAVING A HORIZONTALLY MOUNTED REVOLVABLE DRUM(S) ON THE PERIPHERY OF WHICH THE END OF A ROPE, LINE, STRAP OR CHAIN IS SECURED FOR EXERTING A RAISING, LOWERING, OR PULLING MOTION. THE DEVICE MAY ALSO CONTAIN A REVOLVABLE HEAD(S) OR SPOOL(S) (GYPSY HEAD) AROUND WHICH ONE OR MORE TURNS MUST BE TAKEN FOR EXERTING PULLING POWER. SEE ALSO WINCH, GYPSY.]. 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 3950004319997 contains an unknown precious metal.
This NSN is associated to Schedule B 8425390100: winches and capstans not powered by electric motor. The Schedule B End Use is listed as materials handling equipment. NAICS classification category 333923: overhead traveling crane, hoist, and monorail system manufacturing.
This information was last updated on Jul 01, 2025.