NSN 1615-00-921-0665, 1615009210665
ROLLER ASSEMBLY,DROOP STOP

Federal Supply Classification: FSC 1615 - Helicopter Rotor Blades, Drive Mechanisms and Components
National Item Identification Number: NIIN 009210665
Codification Country: United States
Item Name Code: INC 77777
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

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DLMS^® Summary

National Stock Number 1615-00-921-0665

National Stock Number (NSN) 1615-00-921-0665, or NIIN 009210665, (roller assembly,droop stop) was assigned December 23, 1965 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are 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 5 years.

There has been a small amount of demand for this national stock number. Globally, demand for this NSN has originated from 6 countries.

This NSN is assigned to Item Name Code (INC) 77777. 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 1615009210665 contains an unknown precious metal.

This NSN is associated to Schedule B 8803100060: propellers and rotors and parts thereof, for use in military aircraft. The Schedule B End Use is listed as parts for military-type goods. NAICS classification category 336413: other aircraft parts and auxiliary equipment manufacturing.

This information was last updated on Aug 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) ALUMINUM ALLOY WW-T-785 OR QQ-A-268 BODY,STEEL,CORROSION RESISTING QQ-S-763 OR AMS5630 ROLLER,PASSIVATED PER HP4-8,HEAT TREATED TO ROCKWELL HARDNESS C SCALE 55 TO 59,POLYTETRAFLUOROETHYLENE,REINFORCED LINER,DIM.,0.875 IN. NOM BODY OD,1.400 IN. NOM OD CROWN RADIUS,0.4375 IN. MIN,0.4385 IN. MAX ID,0.376 IN. MIN,0.377 IN. MAX O/A W,MAX SURFACE FINISH,LEFT AND RIGHT ENDS 32 MICROINCHES AA,ALL OTHER SURFACES 125 MICROINCHES AA,ITEM USED ON HUB ASSEMBLY,MAIN ROTOR