PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

704409-1Adapter,gearhead

Ge Aviation Systems Llc · NSN 4920-00-004-9807 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-00-004-9807 — this item is cataloged by the U.S. Government under National Stock Number 4920-00-004-9807. Primary manufacturer part number: 704409-1.
Features
  • Adapter,gearhead — FSC 4920
  • General Characteristics Item Description: CRES,PASSIVATED,2.000 IN. LG,2.000 IN. W IN
  • 4 verified cross-references
  • Primary manufacturer: Ge Aviation Systems Llc
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Adapter,gearhead, cataloged under National Stock Number 4920-00-004-9807, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Ge Aviation Systems Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4920-00-004-9807
Primary Part Number704409-1
Item NameAdapter,gearhead
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerGe Aviation Systems Llc
StatusACTIVE
General Characteristics Item DescriptionCRES,PASSIVATED,2.000 IN. LG,2.000 IN. W IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5330-00-919-6904400191 INTERCHANGEABLE
Seal,bearing Face
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
6645-00-950-8599 INTERCHANGEABLE
Clock,panel
4810-01-049-360740019-1 INTERCHANGEABLE
Seal Assembly
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
5330-01-191-8055400191 INTERCHANGEABLE
Gasket
Racine Tool and Machine Co Div of Burge Machine Inc
6610-01-198-386211558150 INTERCHANGEABLE
Altimeter,pressure
Us Army Aviation and Missile Command
3040-01-393-218110005 ITEM 4 INTERCHANGEABLE
Adapter,spline
Morpac Industries, Inc Div Actuator
1680-01-562-501440019-1 INTERCHANGEABLE
Cover,aircraft,mate
United Technologies Corp Hamilton Sundstrand Corp
3950-01-564-588840019-1 INTERCHANGEABLE
Winch Assembly
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
Cross-Reference Index
Part NumberManufacturer
704409-1 PRIMARY Ge Aviation Systems Llc (USA)
704409-1 Ge Aviation Systems Llc Dba Ge Aviation (USA)
40019-1 Kaiser Aerospace and Electronics Corp Phoenix Electronics Plant (USA)
704409-1 Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA)
Related Parts
5330-00-919-6904INTERCHANGEABLE
SEAL,BEARING FACE
400191
6645-00-950-8599INTERCHANGEABLE
CLOCK,PANEL
4810-01-049-3607INTERCHANGEABLE
SEAL ASSEMBLY
40019-1
5330-01-191-8055INTERCHANGEABLE
GASKET
400191
6610-01-198-3862INTERCHANGEABLE
ALTIMETER,PRESSURE
11558150
3040-01-393-2181INTERCHANGEABLE
ADAPTER,SPLINE
10005 ITEM 4
1680-01-562-5014INTERCHANGEABLE
COVER,AIRCRAFT,MATE
40019-1
3950-01-564-5888INTERCHANGEABLE
WINCH ASSEMBLY
40019-1

Frequently Asked Questions

What is NSN 4920-00-004-9807?

NSN 4920-00-004-9807 is a Adapter,gearhead, manufactured by Ge Aviation Systems Llc, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-00-004-9807?

NSN 4920-00-004-9807 has 4 cross-referenced part numbers: 704409-1 (Ge Aviation Systems Llc), 704409-1 (Ge Aviation Systems Llc Dba Ge Aviation), 40019-1 (Kaiser Aerospace and Electronics Corp Phoenix Electronics Plant), 704409-1 (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc).

What NSN replaces 4920-00-004-9807?

There are 8 known substitutes for 4920-00-004-9807: 5330-00-919-6904, 6645-00-950-8599, 4810-01-049-3607 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 704409-1?

Key specifications for 704409-1: General Characteristics Item Description: CRES,PASSIVATED,2.000 IN. LG,2.000 IN. W 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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