First End Spline Major Diameter: 0.8725 INCHES NOMINAL IN
Second End Diameter: 0.8725 INCHES NOMINAL IN
Largest Step Diameter: 1.250 INCHES NOMINAL IN
Second End Spline Minor Diameter: 0.7450 INCHES NOMINAL IN
First End Style: SPLINED (STRAIGHT)
Identification
NSN: 3040-01-151-3833
NIIN: 011513833
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
General Description
The Shaft,shouldered, cataloged under National Stock Number 3040-01-151-3833, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
3040-01-151-3833
Item Name
Shaft,shouldered
FSC / FSG
3040 / 30 — Miscellaneous Power Transmission Equipment
Status
ACTIVE
Step Quantity
3
First End Diameter
0.8725 INCHES NOMINAL IN
First End Spline Major Diameter
0.8725 INCHES NOMINAL IN
Second End Diameter
0.8725 INCHES NOMINAL IN
Largest Step Diameter
1.250 INCHES NOMINAL IN
Second End Spline Minor Diameter
0.7450 INCHES NOMINAL IN
First End Style
SPLINED (STRAIGHT)
Second End Spline Major Diameter
0.8725 INCHES NOMINAL IN
First End Spline Length
1.812 INCHES NOMINAL IN
First End Spline Quantity
10
End Similarity
NOT IDENTICAL
Second End Spline Quantity
10
Second End Style
SPLINED (STRAIGHT)
First End Spline Minor Diameter
0.7450 INCHES NOMINAL IN
Material
NICKEL ALLOY
Second End Spline Length
2.750 INCHES NOMINAL IN
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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3040-01-151-3885SSN637-501-2159965 PIECE 16POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Ship Systems Command
3040-01-151-634277643-42X10 PIECE 14POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3020-01-152-784777643-42-X10 PIECE 6POSSIBLE MATCH
GEAR,BEVEL
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3020-01-153-881377643-42X10 PIECE 7POSSIBLE MATCH
GEAR,BEVEL
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
2520-01-173-471877643-42X10 PIECE 8POSSIBLE MATCH
UNIVERSAL JOINT,VEHICULAR
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-184-451177643-42X10 PIECE 17POSSIBLE MATCH
SHAFT,VALVE
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
SSN637-501-2159965
D/9Drawing number reference only
U.S. Government activity
SSN637-501-2159965 PIECE 15
3/2Design control — primary reference
U.S. Government activity
77643-42X10 PIECE 15
5/2Secondary reference
U.S. Government activity
Related Parts
3040-01-151-3885POSSIBLE MATCH
SHAFT,SHOULDERED
SSN637-501-2159965 PIECE 16
3040-01-151-6342POSSIBLE MATCH
SHAFT,SHOULDERED
77643-42X10 PIECE 14
3020-01-152-7847POSSIBLE MATCH
GEAR,BEVEL
77643-42-X10 PIECE 6
3020-01-153-8813POSSIBLE MATCH
GEAR,BEVEL
77643-42X10 PIECE 7
2520-01-173-4718POSSIBLE MATCH
UNIVERSAL JOINT,VEHICULAR
77643-42X10 PIECE 8
3040-01-184-4511POSSIBLE MATCH
SHAFT,VALVE
77643-42X10 PIECE 17
Frequently Asked Questions
What is NSN 3040-01-151-3833?
NSN 3040-01-151-3833 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
What NSN replaces 3040-01-151-3833?
6 possible matches (shared part number, not a government interchangeability claim): 3040-01-151-3885, 3040-01-151-6342, 3020-01-152-7847. Verify interchangeability with system specifications before substitution.
What are the specifications of 3040-01-151-3833?
Key specifications for 3040-01-151-3833: Step Quantity: 3; First End Diameter: 0.8725 INCHES NOMINAL IN; First End Spline Major Diameter: 0.8725 INCHES NOMINAL IN; Second End Diameter: 0.8725 INCHES NOMINAL IN. 16 specifications are documented in the U.S. Government catalog.
Is NSN 3040-01-151-3833 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.