PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1440902Gear Assembly

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 1285-00-052-5581 · FSC 1285 · No Item Name Available
Verified by PartsTable
NSN 1285-00-052-5581 — this item is cataloged by the U.S. Government under National Stock Number 1285-00-052-5581. Primary manufacturer part number: 1440902.
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 1285-00-052-5581, 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)
ManufacturersNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (CAGE 10001); Lockheed Martin Corporation Div Rms - Mitchel Field (CAGE 56232)
Technical Specifications
ParameterValue
NSN1285-00-052-5581
Primary Part Number1440902
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
3020-00-815-894077044 INTERCHANGEABLE
Gear,helical
L3harris Technologies, Inc Div Space & Airborne Systems
4720-01-031-64614210606-6-6-4-19.00 INTERCHANGEABLE
Hose Assembly,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
5962-01-118-5894 INTERCHANGEABLE
Microcircuit,digital
5330-01-209-651177044 INTERCHANGEABLE
Seal Assembly,magnetic
Magnetic Seal Llc
5962-01-332-3510 INTERCHANGEABLE
Microcircuit,digital
5962-01-420-7226 INTERCHANGEABLE
Microcircuit,linear
3120-01-424-7742LW-13884 INTERCHANGEABLE
Bearing,plain,rod End
Textron Lycoming Inc Williamsport Plant
Cross-Reference Index
Part NumberManufacturer
1440902 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
77-044 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
Related Parts
3020-00-815-8940INTERCHANGEABLE
GEAR,HELICAL
77044
4720-01-031-6461INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4210606-6-6-4-19.00
5962-01-118-5894INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5330-01-209-6511INTERCHANGEABLE
SEAL ASSEMBLY,MAGNETIC
77044
5962-01-332-3510INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5962-01-420-7226INTERCHANGEABLE
MICROCIRCUIT,LINEAR
3120-01-424-7742INTERCHANGEABLE
BEARING,PLAIN,ROD END
LW-13884

Frequently Asked Questions

What is NSN 1285-00-052-5581?

NSN 1285-00-052-5581 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 1285-00-052-5581?

NSN 1285-00-052-5581 has 2 cross-referenced part numbers: 1440902 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 77-044 (Lockheed Martin Corporation Div Rms - Mitchel Field).

What NSN replaces 1285-00-052-5581?

There are 7 known substitutes for 1285-00-052-5581: 3020-00-815-8940, 4720-01-031-6461, 5962-01-118-5894 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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