PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

595-6404641-26Coupling,shaft,flexible

Naval Sea Systems Command · NSN 3010-01-377-6769 · FSC 3010 · No Item Name Available
Verified by PartsTable
NSN 3010-01-377-6769 — this item is cataloged by the U.S. Government under National Stock Number 3010-01-377-6769. Primary manufacturer part number: 595-6404641-26.
Features
  • Coupling,shaft,flexible — FSC 3010
  • Width: 1.750 INCHES NOMINAL IN
  • Bore Length: 3.4400 INCHES NOMINAL SECOND END IN
  • Bore Length: 4.7500 INCHES NOMINAL FIRST END IN
  • Insulator Material: RUBBER
  • Bore Shape: STRAIGHT BOTH ENDS
  • Design Type: INSULATOR W/FLEXIBLE ROD ACTION
  • 3 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-377-6769, is classified within Federal Supply Class 3010 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references 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.

Technical Specifications
ParameterValue
NSN3010-01-377-6769
Primary Part Number595-6404641-26
Item NameCoupling,shaft,flexible
FSC / FSG3010 / 30 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Width1.750 INCHES NOMINAL IN
Bore Length3.4400 INCHES NOMINAL SECOND END IN
Bore Length4.7500 INCHES NOMINAL FIRST END IN
Insulator MaterialRUBBER
Bore ShapeSTRAIGHT BOTH ENDS
Design TypeINSULATOR W/FLEXIBLE ROD ACTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5342-00-758-8588 INTERCHANGEABLE
Crank,strut Door Flap
5935-01-151-4416 INTERCHANGEABLE
Socket,plug-in Electronic Compon
6150-01-230-59056404641-1 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div
3040-01-379-46176404641-6 INTERCHANGEABLE
Bracket,eye,rotating Shaft
Naval Sea Systems Command
3010-01-383-5165595-6404641-25 INTERCHANGEABLE
Coupling,shaft,flexible
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
6404641-26 Naval Sea Systems Command (USA)
6404641 Naval Sea Systems Command (USA)
595-6404641-26 PRIMARY Naval Sea Systems Command (USA)
Related Parts
5342-00-758-8588INTERCHANGEABLE
CRANK,STRUT DOOR FLAP
5935-01-151-4416INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
6150-01-230-5905INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
6404641-1
3040-01-379-4617INTERCHANGEABLE
BRACKET,EYE,ROTATING SHAFT
6404641-6
3010-01-383-5165INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
595-6404641-25

Frequently Asked Questions

What is NSN 3010-01-377-6769?

NSN 3010-01-377-6769 is a Coupling,shaft,flexible, manufactured by Naval Sea Systems Command, classified under FSC 3010 (No Item Name Available). Status: active.

What are the part numbers for NSN 3010-01-377-6769?

NSN 3010-01-377-6769 has 3 cross-referenced part numbers: 6404641-26 (Naval Sea Systems Command), 6404641 (Naval Sea Systems Command), 595-6404641-26 (Naval Sea Systems Command).

What NSN replaces 3010-01-377-6769?

There are 5 known substitutes for 3010-01-377-6769: 5342-00-758-8588, 5935-01-151-4416, 6150-01-230-5905 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 595-6404641-26?

Key specifications for 595-6404641-26: Width: 1.750 INCHES NOMINAL IN; Bore Length: 3.4400 INCHES NOMINAL SECOND END IN; Bore Length: 4.7500 INCHES NOMINAL FIRST END IN; Insulator Material: RUBBER. 8 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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