NSN 3040-01-476-1602 · NIIN 014761602 · Part number 721-7070284-40
Naval Sea Systems Command · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3040-01-476-1602 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-476-1602. Manufacturer of record part number: 721-7070284-40.
Also searched as3040-01-476-1602 ·
3040014761602 ·
NIIN 014761602 ·
01-476-1602 ·
FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 53711 · 721-7070284-40 · 7070284 · H864-1401-40
Material Document and Classification: QQ-N-281, CL A FED SPEC SINGLE MATERIAL RESPONSE
End Similarity: IDENTICAL
Material: NICKEL ALLOY 400
1 manufacturer part number on file
Identification
NSN: 3040-01-476-1602
NIIN: 014761602
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 721-7070284-40
Manufacturer: Naval Sea Systems Command
General Description
The Shaft,straight, cataloged under National Stock Number 3040-01-476-1602, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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
3040-01-476-1602
Primary Part Number
721-7070284-40
Item Name
Shaft,straight
FSC / FSG
3040 / 30 — Miscellaneous Power Transmission Equipment
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Surface Finish
125.0 MICROINCHES
First End Diameter
0.2775 INCHES NOMINAL IN
First End Style
PLAIN
Material Document and Classification
QQ-N-281, CL A FED SPEC SINGLE MATERIAL RESPONSE
End Similarity
IDENTICAL
Material
NICKEL ALLOY 400
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 Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3020-01-476-1869721-7070284-15POSSIBLE MATCH
GEAR,SPUR
Possible match (shared part number)Naval Sea Systems Command
3020-01-476-1941721-7070284-16POSSIBLE MATCH
GEAR RACK
Possible match (shared part number)Naval Sea Systems Command
3040-01-476-1994721-7070284-48POSSIBLE MATCH
CAM,BARREL
Possible match (shared part number)Naval Sea Systems Command
4810-01-476-2491H8641401-A3POSSIBLE MATCH
ACTUATOR,HYDRAULIC-PNEUMATIC,ROT
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-477-6031H864-1401-A1POSSIBLE MATCH
VALVE ASSEMBLY
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-477-6035H864-1401-4POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-477-6056H864-1401 PIECE 3,7POSSIBLE MATCH
PARTS KIT,BALL VALVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
NSN 3040-01-476-1602 is a Shaft,straight, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
What part numbers are listed for NSN 3040-01-476-1602?
NSN 3040-01-476-1602 has 1 manufacturer part number on file: 721-7070284-40 (Naval Sea Systems Command).
What NSN replaces 3040-01-476-1602?
7 possible matches (shared part number, not a government interchangeability claim): 3020-01-476-1869, 3020-01-476-1941, 3040-01-476-1994. Verify interchangeability with system specifications before substitution.
What are the specifications of 721-7070284-40?
Key specifications for 721-7070284-40: Surface Finish: 125.0 MICROINCHES; First End Diameter: 0.2775 INCHES NOMINAL IN; First End Style: PLAIN; Material Document and Classification: QQ-N-281, CL A FED SPEC SINGLE MATERIAL RESPONSE. 6 specifications are documented in the U.S. Government catalog.
Is NSN 3040-01-476-1602 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.