PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6520-111-12Shaft Assembly,flexible

Schulze Mfg., Inc. · NSN 3040-00-517-5219 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-517-5219 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-517-5219. Primary manufacturer part number: 6520-111-12.
Features
  • Shaft Assembly,flexible — FSC 3040
  • Core Diameter: 0.185 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND BOTH ENDS
  • Thread Depth: 0.500 INCHES NOMINAL BOTH ENDS IN
  • End Connection Type: THREADED INTERNAL BOTH ENDS
  • End Overall Diameter: 1.094 INCHES NOMINAL BOTH ENDS IN
  • Core Rotation Direction: CLOCKWISE
  • Thread Location: INTERNAL BOTH ENDS
Applications
  • Applications requiring Steel Casing construction
General Description

The Shaft Assembly,flexible, cataloged under National Stock Number 3040-00-517-5219, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-00-517-5219
Primary Part Number6520-111-12
Item NameShaft Assembly,flexible
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerSchulze Mfg., Inc.
StatusACTIVE
Core Diameter0.185 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND BOTH ENDS
Thread Depth0.500 INCHES NOMINAL BOTH ENDS IN
End Connection TypeTHREADED INTERNAL BOTH ENDS
End Overall Diameter1.094 INCHES NOMINAL BOTH ENDS IN
Core Rotation DirectionCLOCKWISE
Thread LocationINTERNAL BOTH ENDS
Core Overall Length13.625 INCHES NOMINAL IN
Surface TreatmentZINC CASING
Width Across Flats0.938 INCHES NOMINAL BOTH ENDS IN
Casing Outside Diameter0.438 INCHES NOMINAL IN
Protective Coating MethodCOATED CASING
Wrenching Facility TypeHEXAGON BOTH ENDS
Cross Section Size and Location0.188 INCHES NOMINAL ACROSS FLATS SECOND END IN
End TypeSQUARE FEMALE SECOND END
Casing Length Between Ferrules12.000 INCHES NOMINAL IN
MaterialSTEEL CASING
Screw Thread Series DesignatorUNS BOTH ENDS
MaterialSTEEL CORE
Core RemovabilityREMOVABLE
Minimum Operating Radius6.000 INCHES IN
End TypeROUND KEYED FIRST END
Shank Outside Diameter0.594 INCHES NOMINAL BOTH ENDS IN
Cross Section Size and Location0.187 INCHES NOMINAL DIAMETER FIRST END IN
Thread Class2A BOTH ENDS A
Tip Length0.500 INCHES MINIMUM AND 1.125 INCHES MAXIMUM BOTH ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5310-00-006-2395 INTERCHANGEABLE
Washer,lock
5315-00-011-201214511A INTERCHANGEABLE
Pin,straight,headless
Brinkley Technology Group Llc Dba Hercules Manufacturing
5310-00-171-5749112012 INTERCHANGEABLE
Washer,flat
Kearfott Corporation Div Guidance and Navigation Division
5895-00-973-2703 INTERCHANGEABLE
Control,transponder Set
5325-01-351-5478112012 INTERCHANGEABLE
Ring,retaining
Rexnord Industries Llc
Cross-Reference Index
Part NumberManufacturer
6520-111-12 PRIMARY Schulze Mfg., Inc. (USA)
6520-111-12 Jones Instrument Corp (USA)
1120-12 Jones Instrument Corp (USA)
Related Parts
5310-00-006-2395INTERCHANGEABLE
WASHER,LOCK
5315-00-011-2012INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
14511A
5310-00-171-5749INTERCHANGEABLE
WASHER,FLAT
112012
5895-00-973-2703INTERCHANGEABLE
CONTROL,TRANSPONDER SET
5325-01-351-5478INTERCHANGEABLE
RING,RETAINING
112012

Frequently Asked Questions

What is NSN 3040-00-517-5219?

NSN 3040-00-517-5219 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 3040-00-517-5219?

NSN 3040-00-517-5219 has 3 cross-referenced part numbers: 6520-111-12 (Schulze Mfg., Inc.), 6520-111-12 (Jones Instrument Corp), 1120-12 (Jones Instrument Corp).

What NSN replaces 3040-00-517-5219?

There are 5 known substitutes for 3040-00-517-5219: 5310-00-006-2395, 5315-00-011-2012, 5310-00-171-5749 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6520-111-12?

Key specifications for 6520-111-12: Core Diameter: 0.185 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND BOTH ENDS; Thread Depth: 0.500 INCHES NOMINAL BOTH ENDS IN; End Connection Type: THREADED INTERNAL BOTH ENDS. 28 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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