PartsTable TECHNICAL DATA SHEET

NSN 3040-01-055-0452Government record, cited

Shaft, Shouldered3040-01-055-0452

NSN 3040-01-055-0452 · NIIN 010550452 · Part number 105D3940

General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 05606

Government record, cited

NSN 3040-01-055-0452 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-055-0452. Manufacturer of record part number: 105D3940.

Also searched as 3040-01-055-0452 · 3040010550452 · NIIN 010550452 · 01-055-0452 · FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 05606 · 105D3940 · 3040PL0664496

Nearby stock numbers ← 3040-01-055-0451 Shaft, Shouldered · 3040-01-055-0453 Shaft, Shouldered →

Features

Shaft,shouldered — FSC 3040
Surface Finish: 125.0 MICROINCHES
Step Quantity: 3
First End Diameter: 0.9060 INCHES NOMINAL IN
First End Spline Major Diameter: 0.9060 INCHES NOMINAL IN
Second End Diameter: 0.9060 INCHES NOMINAL IN
Largest Step Diameter: 0.790 INCHES NOMINAL IN
Second End Spline Minor Diameter: 0.8120 INCHES NOMINAL IN

Identification

NSN: 3040-01-055-0452
NIIN: 010550452
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 105D3940
Manufacturer: General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems

General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-01-055-0452, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	3040-01-055-0452
Primary Part Number	105D3940
Item Name	Shaft,shouldered
FSC / FSG	3040 / 30 — Miscellaneous Power Transmission Equipment
Manufacturer	General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems
Status	ACTIVE
Surface Finish	125.0 MICROINCHES
Step Quantity	3
First End Diameter	0.9060 INCHES NOMINAL IN
First End Spline Major Diameter	0.9060 INCHES NOMINAL IN
Second End Diameter	0.9060 INCHES NOMINAL IN
Largest Step Diameter	0.790 INCHES NOMINAL IN
Second End Spline Minor Diameter	0.8120 INCHES NOMINAL IN
First End Style	SPLINED (STRAIGHT)
Second End Spline Major Diameter	0.9060 INCHES NOMINAL IN
First End Spline Length	1.4200 INCHES NOMINAL IN
First End Spline Quantity	28
End Similarity	NOT IDENTICAL
Second End Spline Quantity	28
Second End Style	SPLINED (STRAIGHT)
First End Spline Minor Diameter	0.8120 INCHES NOMINAL IN
Material	ALUMINUM
Second End Spline Length	3.0000 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

Part Number	Manufacturer
105D3940 PRIMARY	General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA)

Reference documents

Reference	Meaning
3040PL0664496	6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index

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 3040-01-055-0452?

NSN 3040-01-055-0452 is a Shaft,shouldered, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What part numbers are listed for NSN 3040-01-055-0452?

NSN 3040-01-055-0452 has 1 manufacturer part number on file: 105D3940 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).

What are the specifications of 105D3940?

Key specifications for 105D3940: Surface Finish: 125.0 MICROINCHES; Step Quantity: 3; First End Diameter: 0.9060 INCHES NOMINAL IN; First End Spline Major Diameter: 0.9060 INCHES NOMINAL IN. 17 specifications are documented in the U.S. Government catalog.

Is NSN 3040-01-055-0452 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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