PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1440882Gear Assembly

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 1285-00-052-5551 · FSC 1285 · No Item Name Available
Verified by PartsTable
NSN 1285-00-052-5551 — this item is cataloged by the U.S. Government under National Stock Number 1285-00-052-5551. Primary manufacturer part number: 1440882.
Features
  • Gear Assembly — FSC 1285
  • 2 verified cross-references
  • Primary manufacturer: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear Assembly, cataloged under National Stock Number 1285-00-052-5551, is classified within Federal Supply Class 1285 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameGear Assembly
FSC / FSG1285 — No Item Name Available (FSG 12)
ManufacturersLockheed Martin Corporation Div Rms - Mitchel Field (CAGE 56232); Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (CAGE 10001)
Technical Specifications
ParameterValue
NSN1285-00-052-5551
Primary Part Number1440882
Item NameGear Assembly
FSC / FSG1285 / 12 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4820-00-097-03147701-8AF INTERCHANGEABLE
Cock,poppet Drain
Parker Hannifin Corporation Div Aerospace Group Headquarters
3110-00-156-4160201KTT3FS381A INTERCHANGEABLE
Bearing,ball,annular
Timken Co Div the Timken Company
1620-00-627-747077013 INTERCHANGEABLE
Pin
Goodrich Corporation
6615-00-956-0073 INTERCHANGEABLE
Gyroscope,rate
6620-01-204-321777013 INTERCHANGEABLE
Gage,pressure,dial Indicating
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
8430-01-467-1818770-13 INTERCHANGEABLE
Boots,flyers'
Belleville Shoe Manufacturing Company
6220-01-569-67426220A INTERCHANGEABLE
Light,warning
Ecco Electronic Controls Company
Cross-Reference Index
Part NumberManufacturer
77-013 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
1440882 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
4820-00-097-0314INTERCHANGEABLE
COCK,POPPET DRAIN
7701-8AF
3110-00-156-4160INTERCHANGEABLE
BEARING,BALL,ANNULAR
201KTT3FS381A
1620-00-627-7470INTERCHANGEABLE
PIN
77013
6615-00-956-0073INTERCHANGEABLE
GYROSCOPE,RATE
6620-01-204-3217INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
77013
8430-01-467-1818INTERCHANGEABLE
BOOTS,FLYERS'
770-13
6220-01-569-6742INTERCHANGEABLE
LIGHT,WARNING
6220A

Frequently Asked Questions

What is NSN 1285-00-052-5551?

NSN 1285-00-052-5551 is a Gear Assembly, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 1285 (No Item Name Available). Status: active.

What are the part numbers for NSN 1285-00-052-5551?

NSN 1285-00-052-5551 has 2 cross-referenced part numbers: 77-013 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1440882 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 1285-00-052-5551?

There are 7 known substitutes for 1285-00-052-5551: 4820-00-097-0314, 3110-00-156-4160, 1620-00-627-7470 and 4 more. Verify interchangeability with system specifications before substitution.

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