National Stock Number (NSN) 1730-01-185-8990, or NIIN 011858990, (tie down,rotary wing blade) was assigned August 5, 1984 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 been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 6 contracts issued for this part number, with 26 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: SPE4A525P3127, SPE4A521F6894, W58RGZ12G0001, W58RGZ12G0001, W58RGZ12G0001. The total value of the awarded contracts has been US$ 303,795.89.
This NSN is unique to one weapons system.
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 Jul 02, 2006, 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 does not have adequate data, lacks rights to data, or both, needed to purchase this part from additional sources. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 28753. [AN ITEM DESIGNED TO SECURE OR RESTRAIN MOVEMENT OF UNFOLDED ROTARY WING BLADES WHILE THE AIRCRAFT IS ON THE GROUND. IT CONSISTS OF A SUITABLE ROTARY BLADE ATTACHING DEVICE(S), WITH PROVISIONS FOR SECURING TO THE AIRCRAFT STRUCTURE, DECK LOOPS, GROUND LOOPS, OR STAKES. IT MAY INCLUDE ASSEMBLIES CONSISTING OF RIGID OR SEMIRIGID TUBING, OR THE LIKE, WITH BLADE ATTACHING FACILITY(IES) AT ONE END, AND THE OTHER END DESIGNED TO ATTACH TO THE FUSELAGE OR CONTOURED TO FIT THE AIRCRAFT FUSELAGE, WITH PROVISIONS FOR SECURING PURPOSES. IT MAY INCLUDE A WARNING STREAMER TO INDICATE REMOVAL BEFORE FLIGHT. IT MAY BE EQUIPPED WITH A TIGHTENING DEVICE. FOR BLADE SECURING DEVICES WHICH NECESSITATE FOLDING OF THE ROTARY WING BLADES, SEE RACK, ROTARY WING BLADE. EXCLUDES:LOCK (AS MODIFIED); TIE DOWN, AIRCRAFT MOORING; AND TIE DOWN, CARGO, AIRCRAFT.]. 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 1730011858990 does not contain precious metals.
This NSN is associated to Schedule B 8803909060: other parts, nesoi, for use in other military aircraft, spacecraft and spacecraft launch vehicles (excluding parts of communication satellites). The Schedule B End Use is listed as parts for military-type goods. NAICS classification category 336419: other guided missile and space vehicle parts and auxiliary equipment manufacturing.
This information was last updated on Jun 01, 2025.