Shaft, Shouldered3040-01-412-0350

NSN 3040-01-412-0350 · NIIN 014120350

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

Government record, cited

Also searched as 3040-01-412-0350 · 3040014120350 · NIIN 014120350 · 01-412-0350 · FSC 3040 Miscellaneous Power Transmission Equipment

Nearby stock numbers ← 3040-01-412-0341 Shaft, Shouldered · 3040-01-412-0482 Shaft, Straight →

Features

Shaft,shouldered — FSC 3040
First End Diameter: 0.4974 INCHES NOMINAL IN
Second End Step Length: 0.620 INCHES NOMINAL IN
First End Style: FLAT KEYWAY
First End Keyway Depth: 0.033 INCHES NOMINAL IN
End Similarity: NOT IDENTICAL
Second End Style: INDENTED FLAT KEYWAY
Material: STEEL COMP 4140

Identification

NSN: 3040-01-412-0350
NIIN: 014120350
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment

General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-01-412-0350, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3040-01-412-0350
Item Name	Shaft,shouldered
FSC / FSG	3040 / 30 — Miscellaneous Power Transmission Equipment
Status	ACTIVE
First End Diameter	0.4974 INCHES NOMINAL IN
Second End Step Length	0.620 INCHES NOMINAL IN
First End Style	FLAT KEYWAY
First End Keyway Depth	0.033 INCHES NOMINAL IN
End Similarity	NOT IDENTICAL
Second End Style	INDENTED FLAT KEYWAY
Material	STEEL COMP 4140
Second End Width Across Flats	0.500 INCHES NOMINAL IN
External Keyway Length	0.500 INCHES NOMINAL FIRST END IN
First End Keyway Width	0.4230 INCHES NOMINAL IN

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
905006463-103	3/9 Design control — primary reference U.S. Government activity

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 3040-01-412-0350?

NSN 3040-01-412-0350 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What are the specifications of 3040-01-412-0350?

Key specifications for 3040-01-412-0350: First End Diameter: 0.4974 INCHES NOMINAL IN; Second End Step Length: 0.620 INCHES NOMINAL IN; First End Style: FLAT KEYWAY; Overall Length: 5.060 INCHES NOMINAL IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 3040-01-412-0350 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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