PartsTable TECHNICAL DATA SHEET

NSN 3040-01-421-6400Government record, cited

Shaft, Shouldered3040-01-421-6400

NSN 3040-01-421-6400 · NIIN 014216400 · Part number 5363412

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

Government record, cited

NSN 3040-01-421-6400 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-421-6400. Manufacturer of record part number: 5363412.

Also searched as 3040-01-421-6400 · 3040014216400 · NIIN 014216400 · 01-421-6400 · FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 53711 · 5363412

Nearby stock numbers ← 3040-01-421-5533 Motor, Cam Drive, Ste · 3040-01-421-6639 Shaft, Straight →

Features

Shaft,shouldered — FSC 3040
Step Quantity: 1
First End Diameter: 3.8680 INCHES MINIMUM IN
Second End Diameter: 2.6243 INCHES MAXIMUM IN
First End Style: UNTHREADED CROSS DRILLED
Material Document and Classification: MIL-S-16974 MIL SPEC SINGLE MATERIAL RESPONSE OR ASTM A304, GR 4140H ASSN STD SINGLE MATERIAL RESPONSE
End Similarity: NOT IDENTICAL
Second End Style: THREE CIRCULAR GROOVES

Identification

NSN: 3040-01-421-6400
NIIN: 014216400
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 5363412
Manufacturer: Naval Sea Systems Command

General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-01-421-6400, 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 8 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3040-01-421-6400
Primary Part Number	5363412
Item Name	Shaft,shouldered
FSC / FSG	3040 / 30 — Miscellaneous Power Transmission Equipment
Manufacturer	Naval Sea Systems Command
Status	ACTIVE
Step Quantity	1
First End Diameter	3.8680 INCHES MINIMUM IN
Second End Diameter	2.6243 INCHES MAXIMUM IN
First End Style	UNTHREADED CROSS DRILLED
Material Document and Classification	MIL-S-16974 MIL SPEC SINGLE MATERIAL RESPONSE OR ASTM A304, GR 4140H ASSN STD SINGLE MATERIAL RESPONSE
End Similarity	NOT IDENTICAL
Second End Style	THREE CIRCULAR GROOVES
Material	STEEL COMP 4140

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
5363412 PRIMARY	Naval Sea Systems Command (USA)

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 3040-01-421-6400?

NSN 3040-01-421-6400 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What part numbers are listed for NSN 3040-01-421-6400?

NSN 3040-01-421-6400 has 1 manufacturer part number on file: 5363412 (Naval Sea Systems Command).

What are the specifications of 5363412?

Key specifications for 5363412: Step Quantity: 1; First End Diameter: 3.8680 INCHES MINIMUM IN; Second End Diameter: 2.6243 INCHES MAXIMUM IN; First End Style: UNTHREADED CROSS DRILLED. 8 specifications are documented in the U.S. Government catalog.

Is NSN 3040-01-421-6400 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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