PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3747Pinion Assembly

Kearflex Engineering Company · NSN 6610-01-227-1691 · FSC 6610 · No Item Name Available
Verified by PartsTable
NSN 6610-01-227-1691 — this item is cataloged by the U.S. Government under National Stock Number 6610-01-227-1691. Primary manufacturer part number: 3747.
Features
  • Pinion Assembly — FSC 6610
  • 1 verified cross-reference
  • Primary manufacturer: Kearflex Engineering Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Pinion Assembly, cataloged under National Stock Number 6610-01-227-1691, is classified within Federal Supply Class 6610 (No Item Name Available) of the Instruments and Laboratory 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePinion Assembly
FSC / FSG6610 — No Item Name Available (FSG 66)
ManufacturersKearflex Engineering Company (CAGE 26136)
Technical Specifications
ParameterValue
NSN6610-01-227-1691
Primary Part Number3747
Item NamePinion Assembly
FSC / FSG6610 / 66 — No Item Name Available
ManufacturerKearflex Engineering Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6210-00-084-7533 INTERCHANGEABLE
Lens,light
5940-00-156-7345 INTERCHANGEABLE
Terminal,lug
5950-00-729-8496615171 INTERCHANGEABLE
Transformer,audio Frequency
Honeywell International Inc. Dba Honeywell International
5330-01-275-05183747 INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
2520-01-504-50928035411 INTERCHANGEABLE
Shifter Fork,vehicular
Jlg Industries, Inc.
Cross-Reference Index
Part NumberManufacturer
3747 PRIMARY Kearflex Engineering Company (USA)
Related Parts
6210-00-084-7533INTERCHANGEABLE
LENS,LIGHT
5940-00-156-7345INTERCHANGEABLE
TERMINAL,LUG
5950-00-729-8496INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
615171
5330-01-275-0518INTERCHANGEABLE
SEAL,PLAIN ENCASED
3747
2520-01-504-5092INTERCHANGEABLE
SHIFTER FORK,VEHICULAR
8035411

Frequently Asked Questions

What is NSN 6610-01-227-1691?

NSN 6610-01-227-1691 is a Pinion Assembly, manufactured by Kearflex Engineering Company, classified under FSC 6610 (No Item Name Available). Status: active.

What are the part numbers for NSN 6610-01-227-1691?

NSN 6610-01-227-1691 has 1 cross-referenced part number: 3747 (Kearflex Engineering Company).

What NSN replaces 6610-01-227-1691?

There are 5 known substitutes for 6610-01-227-1691: 6210-00-084-7533, 5940-00-156-7345, 5950-00-729-8496 and 2 more. Verify interchangeability with system specifications before substitution.

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