PartsTable TECHNICAL DATA SHEET

NSN 3040-01-109-6850Government record, cited

Shaft, Shouldered3040-01-109-6850

NSN 3040-01-109-6850 · NIIN 011096850

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

Government record, cited

Also searched as 3040-01-109-6850 · 3040011096850 · NIIN 011096850 · 01-109-6850 · FSC 3040 Miscellaneous Power Transmission Equipment · 709-4684918 ITEM 8 · 87832-1647 ITEM 8 · 87832-1647 · 709-4684918

Nearby stock numbers ← 3040-01-109-6646 Shaft Assembly, Flexible · 3040-01-109-6869 Shaft, Drive, Flexible →

Features

Shaft,shouldered — FSC 3040
Surface Finish: 32.0 MICROINCHES
Step Quantity: 7
First End Diameter: 0.5000 INCHES NOMINAL IN
Largest Step Diameter: 0.997 INCHES NOMINAL IN
First End External Thread Length: 0.770 INCHES NOMINAL IN
First End Style: EXTERNAL THREADED
Material Document and Classification: MIL-C-24111,COND 2 MIL SPEC SINGLE MATERIAL RESPONSE

Identification

NSN: 3040-01-109-6850
NIIN: 011096850
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment

General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-01-109-6850, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3040-01-109-6850
Item Name	Shaft,shouldered
FSC / FSG	3040 / 30 — Miscellaneous Power Transmission Equipment
Status	ACTIVE
Surface Finish	32.0 MICROINCHES
Step Quantity	7
First End Diameter	0.5000 INCHES NOMINAL IN
Largest Step Diameter	0.997 INCHES NOMINAL IN
First End External Thread Length	0.770 INCHES NOMINAL IN
First End Style	EXTERNAL THREADED
Material Document and Classification	MIL-C-24111,COND 2 MIL SPEC SINGLE MATERIAL RESPONSE
End Similarity	IDENTICAL
Material	STEEL CORROSION RESISTING

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

⇄ Related Items 6

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

3040-01-151-377887832-1647 ITEM 6 POSSIBLE MATCH

TIE ROD,CYLINDER

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

3040-01-151-377987832-1647 ITEM 5 POSSIBLE MATCH

TRAY CYLINDER

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

3040-01-151-378087832-1647 ITEM 10 POSSIBLE MATCH

CAP,LINEAR ACTUATING CYLINDER

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

3040-01-152-928387832-1647 ITEM 2 POSSIBLE MATCH

CAP,LINEAR ACTUATING CYLINDER

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

3040-01-152-928487832-1647 ITEM 3 POSSIBLE MATCH

HEAD,LINEAR ACTUATING CYLINDER

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

3040-01-153-9441218120911 POSSIBLE MATCH

VALVE,VENT

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

Cross-Reference Index

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

Reference documents

Reference	Meaning
709-4684918 ITEM 8	3/2 Design control — primary reference U.S. Government activity
87832-1647 ITEM 8	3/2 Design control — primary reference U.S. Government activity
87832-1647	D/9 Drawing number reference only U.S. Government activity
709-4684918	D/9 Drawing number reference only U.S. Government activity

Related Parts

3040-01-151-3778POSSIBLE MATCH

TIE ROD,CYLINDER

87832-1647 ITEM 6

3040-01-151-3779POSSIBLE MATCH

TRAY CYLINDER

87832-1647 ITEM 5

3040-01-151-3780POSSIBLE MATCH

CAP,LINEAR ACTUATING CYLINDER

87832-1647 ITEM 10

3040-01-152-9283POSSIBLE MATCH

CAP,LINEAR ACTUATING CYLINDER

87832-1647 ITEM 2

3040-01-152-9284POSSIBLE MATCH

HEAD,LINEAR ACTUATING CYLINDER

87832-1647 ITEM 3

3040-01-153-9441POSSIBLE MATCH

VALVE,VENT

218120911

Frequently Asked Questions

What is NSN 3040-01-109-6850?

NSN 3040-01-109-6850 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What NSN replaces 3040-01-109-6850?

6 possible matches (shared part number, not a government interchangeability claim): 3040-01-151-3778, 3040-01-151-3779, 3040-01-151-3780. Verify interchangeability with system specifications before substitution.

What are the specifications of 3040-01-109-6850?

Key specifications for 3040-01-109-6850: Surface Finish: 32.0 MICROINCHES; Step Quantity: 7; First End Diameter: 0.5000 INCHES NOMINAL IN; Largest Step Diameter: 0.997 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.

Is NSN 3040-01-109-6850 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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