PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

39004Coupling,shaft,flexible

Electronic Instrument and Specialty Corp · NSN 3010-00-203-1635 · FSC 3010 · No Item Name Available
Verified by PartsTable
NSN 3010-00-203-1635 — this item is cataloged by the U.S. Government under National Stock Number 3010-00-203-1635. Primary manufacturer part number: 39004.
Features
  • Coupling,shaft,flexible — FSC 3010
  • Design Type: GRID SPRING
  • Securing Method: THREADED HOLE(S) SECOND END
  • Width: 0.719 INCHES NOMINAL0.719 INCHES NOMINAL IN
  • Bore Diameter: 0.2570 INCHES NOMINAL BOTH ENDS IN
  • Bore Shape: STRAIGHT BOTH ENDS
  • Threaded Hole Location: BOTH ENDS: LOCATED ON HUBS
  • Furnished Items and Quantity: 4 SETSCREWS
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupling,shaft,flexible, cataloged under National Stock Number 3010-00-203-1635, is classified within Federal Supply Class 3010 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Electronic Instrument and Specialty Corp. Government technical data includes 11 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3010-00-203-1635
Primary Part Number39004
Item NameCoupling,shaft,flexible
FSC / FSG3010 / 30 — No Item Name Available
ManufacturerElectronic Instrument and Specialty Corp
StatusCANCELLED
Design TypeGRID SPRING
Securing MethodTHREADED HOLE(S) SECOND END
Width0.719 INCHES NOMINAL0.719 INCHES NOMINAL IN
Bore Diameter0.2570 INCHES NOMINAL BOTH ENDS IN
Bore ShapeSTRAIGHT BOTH ENDS
Threaded Hole LocationBOTH ENDS: LOCATED ON HUBS
Furnished Items and Quantity4 SETSCREWS
Threaded Hole Quantity4 BOTH ENDS
Bore Length0.2030 INCHES NOMINAL BOTH ENDS IN
Features ProvidedSTANDARD GRID SPRING
Thread Size DesignatorNO. 6-32 BOTH ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
2920-01-038-1477FG7660B INTERCHANGEABLE
Contact Set,distributor
Phelon R E Co Inc
2540-01-127-694737304 INTERCHANGEABLE
Latch,pintle Hook
Jergens Inc Div Tooling Components Division
1730-01-147-49913-9004 INTERCHANGEABLE
Piston Assembly
Malabar
5930-01-311-545739004 INTERCHANGEABLE
Switch Subassembly
Traco Tidewater Inc
5305-01-568-16133006638 INTERCHANGEABLE
Screw,cap,hexagon Head
General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp
5325-01-642-874615324983 INTERCHANGEABLE
Grommet,nonmetallic
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
9150-01-707-401439004 INTERCHANGEABLE
Lubricating Oil,utility
Wd-40 Company
Cross-Reference Index
Part NumberManufacturer
39004 Electronic Instrument and Specialty Corp (USA)
K39004 Electronic Instrument and Specialty Corp (USA)
Related Parts
2920-01-038-1477INTERCHANGEABLE
CONTACT SET,DISTRIBUTOR
FG7660B
2540-01-127-6947INTERCHANGEABLE
LATCH,PINTLE HOOK
37304
1730-01-147-4991INTERCHANGEABLE
PISTON ASSEMBLY
3-9004
5930-01-311-5457INTERCHANGEABLE
SWITCH SUBASSEMBLY
39004
5305-01-568-1613INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
3006638
5325-01-642-8746INTERCHANGEABLE
GROMMET,NONMETALLIC
15324983
9150-01-707-4014INTERCHANGEABLE
LUBRICATING OIL,UTILITY
39004

Frequently Asked Questions

What is NSN 3010-00-203-1635?

NSN 3010-00-203-1635 is a Coupling,shaft,flexible, manufactured by Electronic Instrument and Specialty Corp, classified under FSC 3010 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3010-00-203-1635?

NSN 3010-00-203-1635 has 2 cross-referenced part numbers: 39004 (Electronic Instrument and Specialty Corp), K39004 (Electronic Instrument and Specialty Corp).

What NSN replaces 3010-00-203-1635?

There are 7 known substitutes for 3010-00-203-1635: 2920-01-038-1477, 2540-01-127-6947, 1730-01-147-4991 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 39004?

Key specifications for 39004: Design Type: GRID SPRING; Securing Method: THREADED HOLE(S) SECOND END; Width: 0.719 INCHES NOMINAL0.719 INCHES NOMINAL IN; Bore Diameter: 0.2570 INCHES NOMINAL BOTH ENDS IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3010-00-203-1635 still in active supply?

NSN 3010-00-203-1635 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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