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741KBA1120 — GEARSHAFT,HELICAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

741KBA1120: GEARSHAFT,HELICAL.

The GEARSHAFT,HELICAL is a the manufacturer industrial component. Key specifications include face_width: 2.056 INCHES NOMINAL IN, shaft_type: STRAIGHT, teeth_type: SINGLE HELIX, gear_material: STEEL, overall_length: 2.741 INCHES NOMINAL IN, shaft_diameter: 3.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-333-3528, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
741KBA1120
NSN: 3040-00-333-3528
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 76040 — MACK TRUCKS INC PARTS OPN (USA)
SPECIFICATIONS
face_width2.056 INCHES NOMINAL IN
shaft_typeSTRAIGHT
teeth_typeSINGLE HELIX
gear_materialSTEEL
overall_length2.741 INCHES NOMINAL IN
shaft_diameter3.750 INCHES NOMINAL IN
shaft_end_typeSPLINED STRAIGHT AND PLAIN
shaft_materialSTEEL
teeth_quantity33
tooth_directionRIGHT
gear_location_on_shaftMIDPOINT BETWEEN ENDS OF SHAFT
NSN3040-00-333-3528
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEARSHAFT,HELICAL TITLE COMPONENT PN 741KBA1120 MFR GEARSHAFT,HELICAL
KEY FEATURES
•
SHAFT TYPE: STRAIGHT
•
SHAFT MATERIAL: STEEL
•
SHAFT DIAMETER: 3.750 INCHES NOMINAL IN
•
TEETH QUANTITY: 33
•
TOOTH DIRECTION: RIGHT
•
TEETH TYPE: SINGLE HELIX
•
GEAR MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
SHAFT TYPESTRAIGHT
SHAFT MATERIALSTEEL
SHAFT DIAMETER3.750 INCHES NOMINAL IN
TEETH QUANTITY33
TOOTH DIRECTIONRIGHT
TEETH TYPESINGLE HELIX
OVERALL LENGTH2.741 INCHES NOMINAL IN
GEAR MATERIALSTEEL
SHAFT END TYPESPLINED STRAIGHT AND PLAIN
GEAR LOCATION ON SHAFTMIDPOINT BETWEEN ENDS OF SHAFT
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 3040-00-001-0047 3040-00-001-0048 3040-00-001-0068 3040-00-001-0077 3040-00-001-0078 3040-00-001-0089 3040-00-001-1224
SUBSTITUTES & CROSS-REFERENCES 1
741KB1120BP1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 741KBA1120?
741KBA1120 is a GEARSHAFT,HELICAL.
What parts can replace 741KBA1120?
There is 1 known substitute for 741KBA1120: 741KB1120BP1. Substitute compatibility should be verified for your specific system.
What is the NSN for 741KBA1120?
741KBA1120 is cataloged in the U.S. Government catalog under NSN 3040-00-333-3528. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.