NSN 3040-01-444-2909 · NIIN 014442909 · Part number 6111404-A6
Naval Sea Systems Command · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3040-01-444-2909 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-444-2909. Manufacturer of record part number: 6111404-A6.
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 6111404-A6
Manufacturer: Naval Sea Systems Command
General Description
The Gearshaft,spur, cataloged under National Stock Number 3040-01-444-2909, 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 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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
3040-01-444-2909
Primary Part Number
6111404-A6
Item Name
Gearshaft,spur
FSC / FSG
3040 / 30 — Miscellaneous Power Transmission Equipment
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Shaft Type
SHOULDERED
Shaft Material
NICKEL ALLOY
Shaft Largest Diameter
1.995 INCHES NOMINAL IN
Shaft End Size
0.750 INCHES AND 1.995 INCHES IN
Teeth Quantity
54
Diametral Pitch
8
Gear Outside Diameter
7.000 INCHES NOMINAL IN
Longer Shaft Segment Length
6.250 INCHES NOMINAL IN
Gear Material
NICKEL ALLOY
Shaft End Type
PLAIN AND THREADED INTERNAL
Gear Location on Shaft
OFF CENTER BETWEEN ENDS OF SHAFT
Pressure Angle
14.5000 DEGREES
Face Width
1.500 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 Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3020-01-444-2914211070549POSSIBLE MATCH
GEAR,SPUR
Possible match (shared part number)Naval Sea Systems Command
3010-01-444-3356211070544POSSIBLE MATCH
UNIVERSAL JOINT,NONVEHICULAR
Possible match (shared part number)Naval Sea Systems Command
3040-01-444-4165C611-1404 FIND AHCA A8POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-444-42946111404-C10POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3040-01-444-4341C611-1404 FIND AHCA C2POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-444-43736405751 AHCA A9POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3040-01-450-31086111404-A4POSSIBLE MATCH
JAW,ANCHOR CHAIN MECHANISM
Possible match (shared part number)Naval Sea Systems Command
3010-01-494-7397581-6405751 FIND 9POSSIBLE MATCH
COUPLING HALF,SHAFT
Possible match (shared part number)Naval Sea Systems Command
Huntington Ingalls Inc Div Newport News Shipbuilding
6405751
D/9Drawing number reference only
Naval Sea Systems Command
6405751-AHCA-A6
5/2Secondary reference
U.S. Government activity
6111404-A6
5/9Secondary reference
U.S. Government activity
C611-1404 FIND A6
5/9Secondary reference
U.S. Government activity
Related Parts
3020-01-444-2914POSSIBLE MATCH
GEAR,SPUR
211070549
3010-01-444-3356POSSIBLE MATCH
UNIVERSAL JOINT,NONVEHICULAR
211070544
3040-01-444-4165POSSIBLE MATCH
SHAFT,SHOULDERED
C611-1404 FIND AHCA A8
3040-01-444-4294POSSIBLE MATCH
SHAFT,SHOULDERED
6111404-C10
3040-01-444-4341POSSIBLE MATCH
SHAFT,SHOULDERED
C611-1404 FIND AHCA C2
3040-01-444-4373POSSIBLE MATCH
SHAFT,SHOULDERED
6405751 AHCA A9
3040-01-450-3108POSSIBLE MATCH
JAW,ANCHOR CHAIN MECHANISM
6111404-A4
3010-01-494-7397POSSIBLE MATCH
COUPLING HALF,SHAFT
581-6405751 FIND 9
5365-01-495-2417POSSIBLE MATCH
PLUG,MACHINE THREAD
Frequently Asked Questions
What is NSN 3040-01-444-2909?
NSN 3040-01-444-2909 is a Gearshaft,spur, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
What part numbers are listed for NSN 3040-01-444-2909?
NSN 3040-01-444-2909 has 2 manufacturer part numbers on file: 6111404-A6 (Naval Sea Systems Command), 581-6405751 AHCA FIND A6 (Naval Sea Systems Command).
What NSN replaces 3040-01-444-2909?
9 possible matches (shared part number, not a government interchangeability claim): 3020-01-444-2914, 3010-01-444-3356, 3040-01-444-4165. Verify interchangeability with system specifications before substitution.
What are the specifications of 6111404-A6?
Key specifications for 6111404-A6: Shaft Type: SHOULDERED; Shaft Material: NICKEL ALLOY; Shaft Largest Diameter: 1.995 INCHES NOMINAL IN; Shaft End Size: 0.750 INCHES AND 1.995 INCHES IN. 13 specifications are documented in the U.S. Government catalog.
Is NSN 3040-01-444-2909 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.