PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20961Coupling Half,shaft

Rexnord Industries, Llc Div Couplings Division · NSN 3010-00-406-2188 · FSC 3010 · No Item Name Available
Verified by PartsTable
NSN 3010-00-406-2188 — this item is cataloged by the U.S. Government under National Stock Number 3010-00-406-2188. Primary manufacturer part number: 20961.
Features
  • Coupling Half,shaft — FSC 3010
  • Features Provided: KEYWAY
  • Bore Shape: STRAIGHT
  • Bore Length: 3.3750 INCHES NOMINAL IN
  • Outside Diameter: 9.500 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Rexnord Industries, Llc Div Couplings Division
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupling Half,shaft, cataloged under National Stock Number 3010-00-406-2188, is classified within Federal Supply Class 3010 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Rexnord Industries, Llc Div Couplings Division. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3010-00-406-2188
Primary Part Number20961
Item NameCoupling Half,shaft
FSC / FSG3010 / 30 — No Item Name Available
ManufacturerRexnord Industries, Llc Div Couplings Division
StatusACTIVE
Features ProvidedKEYWAY
Bore ShapeSTRAIGHT
Bore Length3.3750 INCHES NOMINAL IN
Outside Diameter9.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5950-00-647-51432096-1 INTERCHANGEABLE
Transformer,power
Electronic Transformer Corp Div Electronic Transformer Corporation
5935-00-683-5095DA20961 INTERCHANGEABLE
Backshell,electrical Connector
Itt Cannon Llc
Cross-Reference Index
Part NumberManufacturer
20961 PRIMARY Rexnord Industries, Llc Div Couplings Division (USA)
Related Parts
5950-00-647-5143INTERCHANGEABLE
TRANSFORMER,POWER
2096-1
5935-00-683-5095INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
DA20961

Frequently Asked Questions

What is NSN 3010-00-406-2188?

NSN 3010-00-406-2188 is a Coupling Half,shaft, manufactured by Rexnord Industries, Llc Div Couplings Division, classified under FSC 3010 (No Item Name Available). Status: active.

What are the part numbers for NSN 3010-00-406-2188?

NSN 3010-00-406-2188 has 1 cross-referenced part number: 20961 (Rexnord Industries, Llc Div Couplings Division).

What NSN replaces 3010-00-406-2188?

There are 2 known substitutes for 3010-00-406-2188: 5950-00-647-5143, 5935-00-683-5095. Verify interchangeability with system specifications before substitution.

What are the specifications of 20961?

Key specifications for 20961: Features Provided: KEYWAY; Bore Shape: STRAIGHT; Special Features: BODY KEYING FACILITY DEP/HT:0.656" NOM.; HOLE DIA.:0.625" NOM.; THREAD PROVISION:UNTHREADED; FLANGE THICKNESS:1.781" NOM.; UNTHREADED HOLE QTY:4; SECURING METHOD:UNTHREADED HOLE; HUB OD:5.719" NOM.; KEYING FACILITY QTY:1; BORE COUNTERBORE FEATURE:NOT INCLUDED; Bore Length: 3.3750 INCHES NOMINAL IN. 6 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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