PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3643Index Gear Assembly

Kearflex Engineering Company · NSN 3020-01-085-0206 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-085-0206 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-085-0206. Primary manufacturer part number: 3643.
Features
  • Index Gear Assembly — FSC 3020
  • 1 verified cross-reference
  • Primary manufacturer: Kearflex Engineering Company
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Index Gear Assembly, cataloged under National Stock Number 3020-01-085-0206, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Kearflex Engineering Company. This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN3020-01-085-0206
Primary Part Number3643
Item NameIndex Gear Assembly
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerKearflex Engineering Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5120-00-056-39435120-00-056-3943 INTERCHANGEABLE
Blade,nutdriver
General Services Administration Federal Supply Service
1740-00-395-2804 INTERCHANGEABLE
Trailer,ground Handling
3110-00-516-5289203TF INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
2530-00-734-9775606340 INTERCHANGEABLE
Parts Kit,hydraulic Brake Master
Caterpillar Inc Div Caterpillar Defense
6625-00-844-6450450-0100-000 INTERCHANGEABLE
Ammeter
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6510-01-135-42671626W INTERCHANGEABLE
Dressing,occlusive,adhesive
Solventum Us Llc
6510-01-519-8421TRM1626W05 INTERCHANGEABLE
Dressing,occlusive,adhesive
Nar Medical Depot, Llc
5330-01-680-71533643 INTERCHANGEABLE
Gasket
Buffalo Turbine Defense Llc
Cross-Reference Index
Part NumberManufacturer
3643 PRIMARY Kearflex Engineering Company (USA)
Related Parts
5120-00-056-3943INTERCHANGEABLE
BLADE,NUTDRIVER
5120-00-056-3943
1740-00-395-2804INTERCHANGEABLE
TRAILER,GROUND HANDLING
3110-00-516-5289INTERCHANGEABLE
BEARING,BALL,ANNULAR
203TF
2530-00-734-9775INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE MASTER
606340
6625-00-844-6450INTERCHANGEABLE
AMMETER
450-0100-000
6510-01-135-4267INTERCHANGEABLE
DRESSING,OCCLUSIVE,ADHESIVE
1626W
6510-01-519-8421INTERCHANGEABLE
DRESSING,OCCLUSIVE,ADHESIVE
TRM1626W05
5330-01-680-7153INTERCHANGEABLE
GASKET
3643

Frequently Asked Questions

What is NSN 3020-01-085-0206?

NSN 3020-01-085-0206 is a Index Gear Assembly, manufactured by Kearflex Engineering Company, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-085-0206?

NSN 3020-01-085-0206 has 1 cross-referenced part number: 3643 (Kearflex Engineering Company).

What NSN replaces 3020-01-085-0206?

There are 8 known substitutes for 3020-01-085-0206: 5120-00-056-3943, 1740-00-395-2804, 3110-00-516-5289 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3643?

Key specifications for 3643: End Item Identification: AIRCRAFT MODEL F-4. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com