PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T301-55Coupling Half,shaft

L3harris Technologies, Inc. Div Space and Airborne Systems · NSN 3010-00-204-2137 · FSC 3010 · No Item Name Available
Verified by PartsTable
NSN 3010-00-204-2137 — this item is cataloged by the U.S. Government under National Stock Number 3010-00-204-2137. Primary manufacturer part number: T301-55.
Features
  • Coupling Half,shaft — FSC 3010
  • Body Style: FLEXIBLE KEYWAY INSERT TYPE, THROUGH BORE
  • Outside Diameter: 0.625 INCHES NOMINAL IN
  • Bore Diameter: 0.2500 INCHES NOMINAL IN
  • Material: STEEL
  • Bore Shape: STRAIGHT
  • 2 verified cross-references
  • Primary manufacturer: L3harris Technologies, Inc. Div Space and Airborne Systems
Applications
  • Applications requiring Steel construction
General Description

The Coupling Half,shaft, cataloged under National Stock Number 3010-00-204-2137, is classified within Federal Supply Class 3010 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is L3harris Technologies, Inc. Div Space and Airborne Systems. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN3010-00-204-2137
Primary Part NumberT301-55
Item NameCoupling Half,shaft
FSC / FSG3010 / 30 — No Item Name Available
ManufacturerL3harris Technologies, Inc. Div Space and Airborne Systems
StatusACTIVE
Body StyleFLEXIBLE KEYWAY INSERT TYPE, THROUGH BORE
Outside Diameter0.625 INCHES NOMINAL IN
Bore Diameter0.2500 INCHES NOMINAL IN
MaterialSTEEL
Bore ShapeSTRAIGHT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3010-00-977-61062250282 INTERCHANGEABLE
Coupling,shaft,flexible
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
T301-55 PRIMARY L3harris Technologies, Inc. Div Space and Airborne Systems (USA)
05929REVA L3harris Technologies, Inc. Div Space and Airborne Systems (USA)
Related Parts
3010-00-977-6106INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
2250282

Frequently Asked Questions

What is NSN 3010-00-204-2137?

NSN 3010-00-204-2137 is a Coupling Half,shaft, manufactured by L3harris Technologies, Inc. Div Space and Airborne Systems, classified under FSC 3010 (No Item Name Available). Status: active.

What are the part numbers for NSN 3010-00-204-2137?

NSN 3010-00-204-2137 has 2 cross-referenced part numbers: T301-55 (L3harris Technologies, Inc. Div Space and Airborne Systems), 05929REVA (L3harris Technologies, Inc. Div Space and Airborne Systems).

What NSN replaces 3010-00-204-2137?

There is 1 known substitute for 3010-00-204-2137: 3010-00-977-6106. Verify interchangeability with system specifications before substitution.

What are the specifications of T301-55?

Key specifications for T301-55: Body Style: FLEXIBLE KEYWAY INSERT TYPE, THROUGH BORE; Outside Diameter: 0.625 INCHES NOMINAL IN; Bore Diameter: 0.2500 INCHES NOMINAL IN; Overall Length: 0.594 INCHES NOMINAL IN. 7 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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