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NSN 3040-00-752-8521Government record, cited

Shaft, Shouldered3040-00-752-8521

NSN 3040-00-752-8521 · NIIN 007528521 · Part number 7528521
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 3040-00-752-8521 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-752-8521. Manufacturer of record part number: 7528521.
Also searched as  3040-00-752-8521 · 3040007528521 · NIIN 007528521 · 00-752-8521 · FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 19207 · 7528521
Nearby stock numbers  ·
Features
  • Shaft,shouldered — FSC 3040
  • Step Quantity: 3
  • First End Diameter: 1.3750 INCHES NOMINAL IN
  • Second End Diameter: 2.7490 INCHES NOMINAL IN
  • Largest Step Diameter: 5.000 INCHES NOMINAL IN
  • First End External Thread Length: 2.000 INCHES NOMINAL IN
  • First End Style: EXTERNAL THREADED
  • End Similarity: NOT IDENTICAL
Identification
  • NSN: 3040-00-752-8521
  • NIIN: 007528521
  • FSC: 3040 — Miscellaneous Power Transmission Equipment
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: 7528521
  • Manufacturer: U S Army Tank Automotive Command Amsta-Im-Mm
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-00-752-8521, 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 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-00-752-8521
Primary Part Number7528521
Item NameShaft,shouldered
FSC / FSG3040 / 30 — Miscellaneous Power Transmission Equipment
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusACTIVE
Step Quantity3
First End Diameter1.3750 INCHES NOMINAL IN
Second End Diameter2.7490 INCHES NOMINAL IN
Largest Step Diameter5.000 INCHES NOMINAL IN
First End External Thread Length2.000 INCHES NOMINAL IN
First End StyleEXTERNAL THREADED
End SimilarityNOT IDENTICAL
Second End StylePLAIN
MaterialSTEEL
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
7528521 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (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 3040-00-752-8521?

NSN 3040-00-752-8521 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 3040-00-752-8521?

NSN 3040-00-752-8521 has 1 manufacturer part number on file: 7528521 (U S Army Tank Automotive Command Amsta-Im-Mm).

What are the specifications of 7528521?

Key specifications for 7528521: Step Quantity: 3; First End Diameter: 1.3750 INCHES NOMINAL IN; Second End Diameter: 2.7490 INCHES NOMINAL IN; Largest Step Diameter: 5.000 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.

Is NSN 3040-00-752-8521 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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