PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6520-111-30Shaft Assembly,flexible

Schulze Mfg., Inc. · NSN 3040-00-517-5231 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-517-5231 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-517-5231. Primary manufacturer part number: 6520-111-30.
Features
  • Shaft Assembly,flexible — FSC 3040
  • Core Overall Length: 31.625 INCHES NOMINAL IN
  • Casing Outside Diameter: 0.430 INCHES NOMINAL IN
  • Material: STEEL CASING
  • End Connection Type: THREADED INTERNAL BOTH ENDS
  • End Overall Diameter: 1.094 INCHES NOMINAL BOTH ENDS IN
  • Thread Direction: RIGHT-HAND BOTH ENDS
  • Tip Length: 1.125 INCHES NOMINAL FIRST END IN
Applications
  • Applications requiring Steel Casing construction
General Description

The Shaft Assembly,flexible, cataloged under National Stock Number 3040-00-517-5231, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Schulze Mfg., Inc.. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN3040-00-517-5231
Primary Part Number6520-111-30
Item NameShaft Assembly,flexible
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerSchulze Mfg., Inc.
StatusACTIVE
Core Overall Length31.625 INCHES NOMINAL IN
Casing Outside Diameter0.430 INCHES NOMINAL IN
MaterialSTEEL CASING
End Connection TypeTHREADED INTERNAL BOTH ENDS
End Overall Diameter1.094 INCHES NOMINAL BOTH ENDS IN
Thread DirectionRIGHT-HAND BOTH ENDS
Tip Length1.125 INCHES NOMINAL FIRST END IN
Thread Depth0.500 INCHES NOMINAL BOTH ENDS IN
Spline Quantity10 FIRST END
Cross Section Size and Location0.188 INCHES NOMINAL ACROSS FLATS SECOND END IN
Core RemovabilityREMOVABLE
Core Diameter0.185 INCHES NOMINAL IN
Thread LocationINTERNAL BOTH ENDS
Screw Thread Series DesignatorUNS BOTH ENDS
End TypeROUND KEYED FIRST END
Shank Outside Diameter0.594 INCHES NOMINAL BOTH ENDS IN
Casing Length Between Ferrules30.000 INCHES NOMINAL IN
Cross Section Size and Location0.187 INCHES NOMINAL DIAMETER FIRST END IN
MaterialSTEEL CORE
Width Across Flats0.938 INCHES NOMINAL BOTH ENDS IN
Thread Class2A BOTH ENDS A
Spline TypeSTRAIGHT FIRST END
Minimum Operating Radius6.000 INCHES IN
Tip Length0.500 INCHES NOMINAL SECOND END IN
Core Rotation DirectionCLOCKWISE OR COUNTERCLOCKWISE
Wrenching Facility TypeHEXAGON BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5315-00-273-795202761AB1 INTERCHANGEABLE
Pin,straight,headless
Cnh Industrial America Llc Dba Cnh America
2930-00-374-5617R2378B INTERCHANGEABLE
Radiator,engine Coolant
Thermal Engineering International (usa) Inc.
Cross-Reference Index
Part NumberManufacturer
6520-111-30 PRIMARY Schulze Mfg., Inc. (USA)
6520-111-30 Jones Instrument Corp (USA)
1120-30 Jones Instrument Corp (USA)
Related Parts
5315-00-273-7952INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
02761AB1
2930-00-374-5617INTERCHANGEABLE
RADIATOR,ENGINE COOLANT
R2378B

Frequently Asked Questions

What is NSN 3040-00-517-5231?

NSN 3040-00-517-5231 is a Shaft Assembly,flexible, manufactured by Schulze Mfg., Inc., classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-517-5231?

NSN 3040-00-517-5231 has 3 cross-referenced part numbers: 6520-111-30 (Schulze Mfg., Inc.), 6520-111-30 (Jones Instrument Corp), 1120-30 (Jones Instrument Corp).

What NSN replaces 3040-00-517-5231?

There are 2 known substitutes for 3040-00-517-5231: 5315-00-273-7952, 2930-00-374-5617. Verify interchangeability with system specifications before substitution.

What are the specifications of 6520-111-30?

Key specifications for 6520-111-30: Core Overall Length: 31.625 INCHES NOMINAL IN; Casing Outside Diameter: 0.430 INCHES NOMINAL IN; Material: STEEL CASING; End Connection Type: THREADED INTERNAL BOTH ENDS. 27 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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