Shaft, Shouldered3040-01-170-0740

NSN 3040-01-170-0740 · NIIN 011700740

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

Government record, cited

Also searched as 3040-01-170-0740 · 3040011700740 · NIIN 011700740 · 01-170-0740 · FSC 3040 Miscellaneous Power Transmission Equipment · 60-771PIECE220 · 771-220 · 60-769PIECE220

Nearby stock numbers ← 3040-01-170-0571 Lever, Manual Control · 3040-01-170-0795 Collar, Shaft →

Features

Shaft,shouldered — FSC 3040
Surface Finish: 16.0 MICROINCHES
Second End Flat Length: 0.250 INCHES NOMINAL IN
Step Quantity: 3
First End Diameter: 0.7497 INCHES NOMINAL IN
Second End Diameter: 3.5000 INCHES NOMINAL IN
Largest Step Diameter: 3.500 INCHES NOMINAL IN
First End Style: PLAIN

Identification

NSN: 3040-01-170-0740
NIIN: 011700740
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment

General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-01-170-0740, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	3040-01-170-0740
Item Name	Shaft,shouldered
FSC / FSG	3040 / 30 — Miscellaneous Power Transmission Equipment
Status	ACTIVE
Surface Finish	16.0 MICROINCHES
Second End Flat Length	0.250 INCHES NOMINAL IN
Step Quantity	3
First End Diameter	0.7497 INCHES NOMINAL IN
Second End Diameter	3.5000 INCHES NOMINAL IN
Largest Step Diameter	3.500 INCHES NOMINAL IN
First End Style	PLAIN
Material Document and Classification	MIL-S-6709 MIL SPEC SINGLE MATERIAL RESPONSE
End Similarity	NOT IDENTICAL
Second End Style	FLATTED
Material	STEEL
Second End Flat Depth	0.6250 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
60-771PIECE220	5/9 Secondary reference Hardie-Tynes Co., Inc.
771-220	3/9 Design control — primary reference Hardie-Tynes Co., Inc.
60-769PIECE220	5/9 Secondary reference Hardie-Tynes Co., Inc.

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 3040-01-170-0740?

NSN 3040-01-170-0740 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What are the specifications of 3040-01-170-0740?

Key specifications for 3040-01-170-0740: Surface Finish: 16.0 MICROINCHES; Second End Flat Length: 0.250 INCHES NOMINAL IN; Step Quantity: 3; First End Diameter: 0.7497 INCHES NOMINAL IN. 12 specifications are documented in the U.S. Government catalog.

Is NSN 3040-01-170-0740 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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