PartsTable TECHNICAL DATA SHEET

NSN 3040-00-770-0337Government record, cited

Shaft, Shouldered3040-00-770-0337

NSN 3040-00-770-0337 · NIIN 007700337

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

Government record, cited

Also searched as 3040-00-770-0337 · 3040007700337 · NIIN 007700337 · 00-770-0337 · FSC 3040 Miscellaneous Power Transmission Equipment

Nearby stock numbers ← 3040-00-770-0336 · 3040-00-770-0339 Shaft, Shouldered →

Features

Shaft,shouldered — FSC 3040
Surface Finish: 32.0 MICROINCHES
Step Quantity: 11
First End Diameter: 0.1245 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
Second End Diameter: 0.50000 INCHES NOMINAL IN
Second End Step Length: 0.375 INCHES NOMINAL IN
Largest Step Diameter: 1.000 INCHES NOMINAL IN
First End Style: PLAIN

Identification

NSN: 3040-00-770-0337
NIIN: 007700337
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment

General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-00-770-0337, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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	3040-00-770-0337
Item Name	Shaft,shouldered
FSC / FSG	3040 / 30 — Miscellaneous Power Transmission Equipment
Status	ACTIVE
Surface Finish	32.0 MICROINCHES
Step Quantity	11
First End Diameter	0.1245 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
Second End Diameter	0.50000 INCHES NOMINAL IN
Second End Step Length	0.375 INCHES NOMINAL IN
Largest Step Diameter	1.000 INCHES NOMINAL IN
First End Style	PLAIN
Material Document and Classification	QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
Second End Tongue Width	0.375 INCHES NOMINAL IN
End Similarity	NOT IDENTICAL
Second End Tongue Thickness	0.250 INCHES NOMINAL IN
Second End Style	TONGUE ROUNDED ENDS
Material	STEEL COMP 303 OR STEEL COMP 416

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 9

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

5360-01-003-019232366 POSSIBLE MATCH

SPRING,HELICAL,COMPRESSION

Possible match (shared part number)Honeywell International Inc. Div Aerospace - Torrance

2510-01-064-5790 POSSIBLE MATCH

HOLD DOWN,SPECIAL

Possible match (shared part number)

2530-01-081-2631 POSSIBLE MATCH

CAP,INLET,DISK BRAKE

Possible match (shared part number)

5930-01-171-9160B56512-7 POSSIBLE MATCH

SWITCH,THERMOSTATIC

Possible match (shared part number)B/e Aerospace, Inc. Div Lenexa Business Unit

3040-01-173-426132366 POSSIBLE MATCH

GEARSHAFT,BEVEL

Possible match (shared part number)Terex Reedrill Dba Reedrill Texoma Div Terex Mining

5330-01-246-941332-366 POSSIBLE MATCH

GASKET

Possible match (shared part number)Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc

4310-01-643-887832366 POSSIBLE MATCH

DEFLECTOR,DIRT AND LIQUID

Possible match (shared part number)Smc Metal Fabricators, Inc.

4730-01-649-308763015 POSSIBLE MATCH

TEE,TUBE

Possible match (shared part number)Generac Mobile Products, Llc

1005-01-708-973232366 POSSIBLE MATCH

MAINTENANCE KIT,GUN

Possible match (shared part number)Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc

Cross-Reference Index

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

Reference documents

Reference	Meaning
32366	3/2 Design control — primary reference U.S. Government activity

Related Parts

5360-01-003-0192POSSIBLE MATCH

SPRING,HELICAL,COMPRESSION

32366

2510-01-064-5790POSSIBLE MATCH

HOLD DOWN,SPECIAL

2530-01-081-2631POSSIBLE MATCH

CAP,INLET,DISK BRAKE

5930-01-171-9160POSSIBLE MATCH

SWITCH,THERMOSTATIC

B56512-7

3040-01-173-4261POSSIBLE MATCH

GEARSHAFT,BEVEL

32366

5330-01-246-9413POSSIBLE MATCH

GASKET

32-366

4310-01-643-8878POSSIBLE MATCH

DEFLECTOR,DIRT AND LIQUID

32366

4730-01-649-3087POSSIBLE MATCH

TEE,TUBE

63015

1005-01-708-9732POSSIBLE MATCH

MAINTENANCE KIT,GUN

32366

Frequently Asked Questions

What is NSN 3040-00-770-0337?

NSN 3040-00-770-0337 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What NSN replaces 3040-00-770-0337?

9 possible matches (shared part number, not a government interchangeability claim): 5360-01-003-0192, 2510-01-064-5790, 2530-01-081-2631. Verify interchangeability with system specifications before substitution.

What are the specifications of 3040-00-770-0337?

Key specifications for 3040-00-770-0337: Surface Finish: 32.0 MICROINCHES; Step Quantity: 11; First End Diameter: 0.1245 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN; Second End Diameter: 0.50000 INCHES NOMINAL IN. 13 specifications are documented in the U.S. Government catalog.

Is NSN 3040-00-770-0337 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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