PartsTable TECHNICAL DATA SHEET

NSN 3040-01-478-8497Government record, cited

Gearshaft, Bevel3040-01-478-8497

NSN 3040-01-478-8497 · NIIN 014788497 · Part number 803-7106793-6-0A-1-127

Naval Sea Systems Command · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711

Government record, cited

NSN 3040-01-478-8497 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-478-8497. Manufacturer of record part number: 803-7106793-6-0A-1-127.

Also searched as 3040-01-478-8497 · 3040014788497 · NIIN 014788497 · 01-478-8497 · FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 53711 · 803-7106793-6-0A-1-127 · 7106793

Nearby stock numbers ← 3040-01-478-8344 Connecting Link, Rigid · 3040-01-478-8767 Shaft, Shouldered →

Features

Gearshaft,bevel — FSC 3040
Shaft Type: STRAIGHT
Shaft Material: STEEL COMP 630
Gear Outside Diameter: 3.553 INCHES NOMINAL IN
Gear Material: COPPER ALLOY 623
Shaft End Type: THREADED EXTERNAL AND TAPERED WITH FLAT
Gear Location on Shaft: MIDPOINT BETWEEN ENDS OF SHAFT
1 manufacturer part number on file

Identification

NSN: 3040-01-478-8497
NIIN: 014788497
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 803-7106793-6-0A-1-127
Manufacturer: Naval Sea Systems Command

General Description

The Gearshaft,bevel, cataloged under National Stock Number 3040-01-478-8497, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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	3040-01-478-8497
Primary Part Number	803-7106793-6-0A-1-127
Item Name	Gearshaft,bevel
FSC / FSG	3040 / 30 — Miscellaneous Power Transmission Equipment
Manufacturer	Naval Sea Systems Command
Status	ACTIVE
Shaft Type	STRAIGHT
Shaft Material	STEEL COMP 630
Gear Outside Diameter	3.553 INCHES NOMINAL IN
Gear Material	COPPER ALLOY 623
Shaft End Type	THREADED EXTERNAL AND TAPERED WITH FLAT
Gear Location on Shaft	MIDPOINT BETWEEN ENDS OF SHAFT

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 5

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

3020-01-481-8173803-7106793-8-OB-3-130 POSSIBLE MATCH

GEAR SET,WORM AND WORM WHEEL,MAT

Possible match (shared part number)Naval Sea Systems Command

4820-01-501-7503803-7106793-8 POSSIBLE MATCH

VALVE,BUTTERFLY

Possible match (shared part number)Naval Sea Systems Command

4820-01-554-34077106793-8A POSSIBLE MATCH

VALVE,BUTTERFLY

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

4820-01-710-5767803-7106793-5S-OB-3 POSSIBLE MATCH

VALVE,BUTTERFLY

Possible match (shared part number)Naval Sea Systems Command

4820-01-710-5838803-7106793-5S-OB-3-016 POSSIBLE MATCH

GEAR OPERATOR,VALVE

Possible match (shared part number)Naval Sea Systems Command

Cross-Reference Index

Part Number	Manufacturer
803-7106793-6-0A-1-127 PRIMARY	Naval Sea Systems Command (USA)

Reference documents

Reference	Meaning
7106793	D/9 Drawing number reference only Naval Sea Systems Command

Related Parts

3020-01-481-8173POSSIBLE MATCH

GEAR SET,WORM AND WORM WHEEL,MAT

803-7106793-8-OB-3-130

4820-01-501-7503POSSIBLE MATCH

VALVE,BUTTERFLY

803-7106793-8

4820-01-554-3407POSSIBLE MATCH

VALVE,BUTTERFLY

7106793-8A

4820-01-710-5767POSSIBLE MATCH

VALVE,BUTTERFLY

803-7106793-5S-OB-3

4820-01-710-5838POSSIBLE MATCH

GEAR OPERATOR,VALVE

803-7106793-5S-OB-3-016

Frequently Asked Questions

What is NSN 3040-01-478-8497?

NSN 3040-01-478-8497 is a Gearshaft,bevel, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What part numbers are listed for NSN 3040-01-478-8497?

NSN 3040-01-478-8497 has 1 manufacturer part number on file: 803-7106793-6-0A-1-127 (Naval Sea Systems Command).

What NSN replaces 3040-01-478-8497?

5 possible matches (shared part number, not a government interchangeability claim): 3020-01-481-8173, 4820-01-501-7503, 4820-01-554-3407. Verify interchangeability with system specifications before substitution.

What are the specifications of 803-7106793-6-0A-1-127?

Key specifications for 803-7106793-6-0A-1-127: Shaft Type: STRAIGHT; Shaft Material: STEEL COMP 630; Gear Outside Diameter: 3.553 INCHES NOMINAL IN; Overall Length: 9.000 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 3040-01-478-8497 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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