PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21/2WCoupling,shaft,flexible

Reliance Electric Company Dba Reliance & Dodge Brands · NSN 3010-00-267-5546 · FSC 3010 · No Item Name Available
Verified by PartsTable
NSN 3010-00-267-5546 — this item is cataloged by the U.S. Government under National Stock Number 3010-00-267-5546. Primary manufacturer part number: 21/2W.
Features
  • Coupling,shaft,flexible — FSC 3010
  • Outside Diameter: 8.375 INCHES NOMINAL IN
  • Design Type: INTERNAL GEAR
  • 2 verified cross-references
  • Primary manufacturer: Reliance Electric Company Dba Reliance & Dodge Brands
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupling,shaft,flexible, cataloged under National Stock Number 3010-00-267-5546, is classified within Federal Supply Class 3010 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Reliance Electric Company Dba Reliance & Dodge Brands. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3010-00-267-5546
Primary Part Number21/2W
Item NameCoupling,shaft,flexible
FSC / FSG3010 / 30 — No Item Name Available
ManufacturerReliance Electric Company Dba Reliance & Dodge Brands
StatusACTIVE
Outside Diameter8.375 INCHES NOMINAL IN
Design TypeINTERNAL GEAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-554-3096212WFS185 INTERCHANGEABLE
Bearing,ball,annular
Timken Co Div the Timken Company
Cross-Reference Index
Part NumberManufacturer
21/2W PRIMARY Reliance Electric Company Dba Reliance & Dodge Brands (USA)
R266-1T8SIZE3A Somerset Engineering Div Midland-Ross Corp (USA)
Related Parts
3110-00-554-3096INTERCHANGEABLE
BEARING,BALL,ANNULAR
212WFS185

Frequently Asked Questions

What is NSN 3010-00-267-5546?

NSN 3010-00-267-5546 is a Coupling,shaft,flexible, manufactured by Reliance Electric Company Dba Reliance & Dodge Brands, classified under FSC 3010 (No Item Name Available). Status: active.

What are the part numbers for NSN 3010-00-267-5546?

NSN 3010-00-267-5546 has 2 cross-referenced part numbers: 21/2W (Reliance Electric Company Dba Reliance & Dodge Brands), R266-1T8SIZE3A (Somerset Engineering Div Midland-Ross Corp).

What NSN replaces 3010-00-267-5546?

There is 1 known substitute for 3010-00-267-5546: 3110-00-554-3096. Verify interchangeability with system specifications before substitution.

What are the specifications of 21/2W?

Key specifications for 21/2W: Overall Length: 6.250 INCHES NOMINAL IN; Outside Diameter: 8.375 INCHES NOMINAL IN; Design Type: INTERNAL GEAR. 3 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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