PartsTable TECHNICAL DATA SHEET
NSN 3040-01-480-0391Government record, cited

Shaft, Shouldered3040-01-480-0391

NSN 3040-01-480-0391 · NIIN 014800391 · Part number 12421514
U S Army Tank Automotive Command Amsta-Im-Mm · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 19207
Government record, cited
NSN 3040-01-480-0391 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-480-0391. Manufacturer of record part number: 12421514.
Also searched as  3040-01-480-0391 · 3040014800391 · NIIN 014800391 · 01-480-0391 · FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 19207 · 12421514
Nearby stock numbers  ·
Features
  • Shaft,shouldered — FSC 3040
  • Surface Finish: 125.0 MICROINCHES
  • First End Width Across Flats: 0.624 INCHES NOMINAL IN
  • Step Quantity: 5
  • First End Diameter: 0.7500 INCHES NOMINAL IN
  • First End Step Length: 1.070 INCHES NOMINAL IN
  • Largest Step Diameter: 1.500 INCHES NOMINAL IN
  • First End Style: SQUARE AND CROSS DRILLED HOLE
Identification
  • NSN: 3040-01-480-0391
  • NIIN: 014800391
  • FSC: 3040 — Miscellaneous Power Transmission Equipment
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: 12421514
  • Manufacturer: U S Army Tank Automotive Command Amsta-Im-Mm
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-01-480-0391, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-480-0391
Primary Part Number12421514
Item NameShaft,shouldered
FSC / FSG3040 / 30 — Miscellaneous Power Transmission Equipment
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusACTIVE
Surface Finish125.0 MICROINCHES
First End Width Across Flats0.624 INCHES NOMINAL IN
Step Quantity5
First End Diameter0.7500 INCHES NOMINAL IN
First End Step Length1.070 INCHES NOMINAL IN
Largest Step Diameter1.500 INCHES NOMINAL IN
First End StyleSQUARE AND CROSS DRILLED HOLE
Material Document and ClassificationASTM 582, TY 303, CD A ASSN STD SINGLE MATERIAL RESPONSE
End SimilarityNOT IDENTICAL
First End Hole Diameter0.2010 INCHES NOMINAL IN
MaterialSTEEL COMP 303
First End Distance From Hole Center to End0.470 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
12421514 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
12421514 Amz Alabama Inc. (USA)
12421514 Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA)
No interchangeability data on file.
Other items in FSC 3040 — Miscellaneous Power Transmission Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3040-00-001-0046
3040-00-001-0046 · Item name not on file
3040-00-001-0047
3040-00-001-0047 · Item name not on file
3040-00-001-0048
3040-00-001-0048 · Item name not on file
3040-00-001-0068
3040-00-001-0068 · Item name not on file
3040-00-001-0077
3040-00-001-0077 · Item name not on file
3040-00-001-0078
3040-00-001-0078 · Item name not on file
3040-00-001-0089
3040-00-001-0089 · Item name not on file
3040-00-001-1224
3040-00-001-1224 · Item name not on file

Frequently Asked Questions

What is NSN 3040-01-480-0391?

NSN 3040-01-480-0391 is a Shaft,shouldered, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What part numbers are listed for NSN 3040-01-480-0391?

NSN 3040-01-480-0391 has 3 manufacturer part numbers on file: 12421514 (U S Army Tank Automotive Command Amsta-Im-Mm), 12421514 (Amz Alabama Inc.), 12421514 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc).

What are the specifications of 12421514?

Key specifications for 12421514: Surface Finish: 125.0 MICROINCHES; First End Width Across Flats: 0.624 INCHES NOMINAL IN; Step Quantity: 5; First End Diameter: 0.7500 INCHES NOMINAL IN. 12 specifications are documented in the U.S. Government catalog.

Is NSN 3040-01-480-0391 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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