PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

369A1231Roller Assembly,droop Stop

The Boeing Company · NSN 1615-00-921-0665 · FSC 1615 · No Item Name Available
Verified by PartsTable
NSN 1615-00-921-0665 — this item is cataloged by the U.S. Government under National Stock Number 1615-00-921-0665. Primary manufacturer part number: 369A1231.
Features
  • Roller Assembly,droop Stop — FSC 1615
  • General Characteristics Item Description: 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 IN
  • 5 verified cross-references
  • Primary manufacturer: The Boeing Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Roller Assembly,droop Stop, cataloged under National Stock Number 1615-00-921-0665, is classified within Federal Supply Class 1615 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is The Boeing Company. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1615-00-921-0665
Primary Part Number369A1231
Item NameRoller Assembly,droop Stop
FSC / FSG1615 / 16 — No Item Name Available
ManufacturerThe Boeing Company
StatusACTIVE
General Characteristics Item DescriptionALUMINUM 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 IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5331-00-238-952279404 INTERCHANGEABLE
O-Ring
Hamilton Sundstrand Corporation Dba Collins Aerospace
5310-00-559-0070115544 INTERCHANGEABLE
Washer,lock
Rolls-Royce Solutions America Inc
5330-01-106-4329A054079404 INTERCHANGEABLE
Seal,plain Encased
Prestolite Electric Inc
Cross-Reference Index
Part NumberManufacturer
369A1231 Mcdonnell Douglas Helicopter Co Inc (USA)
JA14TA28-122-E9534 Rbc Aircraft Products, Inc. (USA)
JA14TA28-122-E9534 Timken Co Div the Timken Company (USA)
79404 Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA)
369A1231 PRIMARY The Boeing Company (USA)
Related Parts
5331-00-238-9522INTERCHANGEABLE
O-RING
79404
5310-00-559-0070INTERCHANGEABLE
WASHER,LOCK
115544
5330-01-106-4329INTERCHANGEABLE
SEAL,PLAIN ENCASED
A054079404

Frequently Asked Questions

What is NSN 1615-00-921-0665?

NSN 1615-00-921-0665 is a Roller Assembly,droop Stop, manufactured by The Boeing Company, classified under FSC 1615 (No Item Name Available). Status: active.

What are the part numbers for NSN 1615-00-921-0665?

NSN 1615-00-921-0665 has 5 cross-referenced part numbers: 369A1231 (Mcdonnell Douglas Helicopter Co Inc), JA14TA28-122-E9534 (Rbc Aircraft Products, Inc.), JA14TA28-122-E9534 (Timken Co Div the Timken Company), 79404 (Rbc Transport Dynamics Corp Div Rbc Transport Dynamics), 369A1231 (The Boeing Company).

What NSN replaces 1615-00-921-0665?

There are 3 known substitutes for 1615-00-921-0665: 5331-00-238-9522, 5310-00-559-0070, 5330-01-106-4329. Verify interchangeability with system specifications before substitution.

What are the specifications of 369A1231?

Key specifications for 369A1231: General Characteristics Item Description: 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 IN. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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