Shaft, Shouldered3040-00-388-3737

NSN 3040-00-388-3737 · NIIN 003883737

FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment

Government record, cited

Also searched as 3040-00-388-3737 · 3040003883737 · NIIN 003883737 · 00-388-3737 · FSC 3040 Miscellaneous Power Transmission Equipment · 8MTH7140 · 8MTH7140

Nearby stock numbers ← 3040-00-388-3327 · 3040-00-388-4332 →

Features

Shaft,shouldered — FSC 3040
Second End Grooved Flat Length: 0.1500 INCHES NOMINAL IN
Step Quantity: 2
First End Diameter: 1.1100 INCHES NOMINAL IN
Second End Distance From End to Flat: 0.281 INCHES NOMINAL IN
Second End Diameter: 1.1150 INCHES NOMINAL IN
Largest Step Diameter: 1.115 INCHES NOMINAL IN
First End Style: PLAIN

Identification

NSN: 3040-00-388-3737
NIIN: 003883737
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment

General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-00-388-3737, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3040-00-388-3737
Item Name	Shaft,shouldered
FSC / FSG	3040 / 30 — Miscellaneous Power Transmission Equipment
Status	ACTIVE
Second End Grooved Flat Length	0.1500 INCHES NOMINAL IN
Step Quantity	2
First End Diameter	1.1100 INCHES NOMINAL IN
Second End Distance From End to Flat	0.281 INCHES NOMINAL IN
Second End Diameter	1.1150 INCHES NOMINAL IN
Largest Step Diameter	1.115 INCHES NOMINAL IN
First End Style	PLAIN
End Similarity	NOT IDENTICAL
Second End Grooved Flat Depth	0.312 INCHES NOMINAL IN
Second End Style	FLAT GROOVED
Material	STEEL

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
8MTH7140	3/9 Design control — primary reference Ford Motor Company
8MTH7140	5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales

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 3040-00-388-3737?

NSN 3040-00-388-3737 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What are the specifications of 3040-00-388-3737?

Key specifications for 3040-00-388-3737: Second End Grooved Flat Length: 0.1500 INCHES NOMINAL IN; Step Quantity: 2; First End Diameter: 1.1100 INCHES NOMINAL IN; Second End Distance From End to Flat: 0.281 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.

Is NSN 3040-00-388-3737 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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