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120-324 — GEAR,HELICAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

120-324: GEAR,HELICAL.

The GEAR,HELICAL is a the manufacturer industrial component. Key specifications include hole_diameter: 0.359 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-249-9909, 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
120-324
NSN: 3020-00-249-9909
NIINs: 002499909, 006323776
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 44940 — CUMMINS POWER GENERATION INC. (USA)
SPECIFICATIONS
hole_diameter0.359 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
NSN3020-00-249-9909
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,HELICAL TITLE COMPONENT PN 120-324 MFR GEAR,HELICAL
KEY FEATURES
•
KEYWAY NOMINAL WIDTH: 0.094 INCHES BOTH ENDS IN
•
BORE NOMINAL DIAMETER: 0.500 INCHES BOTH ENDS IN
•
HELIX ANGLE: 23.0333 DEGREES
•
HUB NOMINAL DIAMETER: 0.875 INCHES BOTH ENDS IN
•
TEETH QUANTITY: 22
•
BODY STYLE: WEBBED, SOLID
•
TOOTH DIRECTION: RIGHT
•
BORE STYLE: W/ KEYWAY BOTH ENDS
TECHNICAL CHARACTERISTICS
KEYWAY NOMINAL WIDTH0.094 INCHES BOTH ENDS IN
BORE NOMINAL DIAMETER0.500 INCHES BOTH ENDS IN
HELIX ANGLE23.0333 DEGREES
HUB NOMINAL DIAMETER0.875 INCHES BOTH ENDS IN
TEETH QUANTITY22
BODY STYLEWEBBED, SOLID
TOOTH DIRECTIONRIGHT
BORE STYLEW/ KEYWAY BOTH ENDS
TEETH TYPESINGLE HELIX
STYLE DESIGNATORFLUSH HUB
SUBSTITUTES & CROSS-REFERENCES 2
12081BReference document
Same NSN cross-reference
Reference document — Secondary reference
120A324Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 120-324?
120-324 is a GEAR,HELICAL.
What parts can replace 120-324?
There are 2 known substitutes for 120-324: 12081B, 120A324. Substitute compatibility should be verified for your specific system.
What is the NSN for 120-324?
120-324 is cataloged in the U.S. Government catalog under NSN 3020-00-249-9909. 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.