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LC1012242 — GEAR,HELICAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

LC1012242: GEAR,HELICAL.

The GEAR,HELICAL is a the manufacturer industrial component. Key specifications include body_style: WEBBED, WITH LIGHTENING HOLES, bore_style: W/ KEYWAY BOTH ENDS, teeth_type: SINGLE HELIX, helix_angle: 11.5498 DEGREES, pitch_diameter: 5.0000 INCHES NOMINAL IN, teeth_quantity: 49. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-102-8380, 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
LC1012242
NSN: 3020-00-102-8380
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 0BR59 — SIEMENS GOVERNMENT TECHNOLOGIES, INC. DBA SGT DRESSER-RAND DIV SGT DRESSER-RAND (USA)
SPECIFICATIONS
body_styleWEBBED, WITH LIGHTENING HOLES
bore_styleW/ KEYWAY BOTH ENDS
teeth_typeSINGLE HELIX
helix_angle11.5498 DEGREES
pitch_diameter5.0000 INCHES NOMINAL IN
teeth_quantity49
tooth_directionRIGHT
style_designatorONE PROTRUDING HUB, ONE FLUSH HUB
face_nominal_width0.750 INCHES IN
hub_nominal_diameter2.250 INCHES BOTH ENDS IN
hub_style_designatorPLAIN BOTH ENDS
keyway_nominal_width0.376 INCHES BOTH ENDS IN
NSN3020-00-102-8380
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,HELICAL TITLE COMPONENT PN LC1012242 MFR GEAR,HELICAL
KEY FEATURES
•
KEYWAY NOMINAL WIDTH: 0.376 INCHES BOTH ENDS IN
•
BORE NOMINAL DIAMETER: 1.351 INCHES BOTH ENDS IN
•
HELIX ANGLE: 11.5498 DEGREES
•
HUB NOMINAL DIAMETER: 2.250 INCHES BOTH ENDS IN
•
TEETH QUANTITY: 49
•
BODY STYLE: WEBBED, WITH LIGHTENING HOLES
•
TOOTH DIRECTION: RIGHT
•
BORE STYLE: W/ KEYWAY BOTH ENDS
TECHNICAL CHARACTERISTICS
KEYWAY NOMINAL WIDTH0.376 INCHES BOTH ENDS IN
BORE NOMINAL DIAMETER1.351 INCHES BOTH ENDS IN
HELIX ANGLE11.5498 DEGREES
HUB NOMINAL DIAMETER2.250 INCHES BOTH ENDS IN
TEETH QUANTITY49
BODY STYLEWEBBED, WITH LIGHTENING HOLES
TOOTH DIRECTIONRIGHT
BORE STYLEW/ KEYWAY BOTH ENDS
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.750 INCHES FIRST END IN
TEETH TYPESINGLE HELIX
SUBSTITUTES & CROSS-REFERENCES 3
102242-001Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
102242-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LC102242-001Reference 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 LC1012242?
LC1012242 is a GEAR,HELICAL.
What parts can replace LC1012242?
There are 3 known substitutes for LC1012242: 102242-001, 102242-1, LC102242-001. Substitute compatibility should be verified for your specific system.
What is the NSN for LC1012242?
LC1012242 is cataloged in the U.S. Government catalog under NSN 3020-00-102-8380. 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.