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3B8059 — GEAR CLUSTER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3B8059: GEAR CLUSTER.

The GEAR CLUSTER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_style: W/ KEYWAY BOTH ENDS, design_type: SPUR FIRST GEAR, construction: SOLID, attachment_method: MOUNTING HOLE, hub_nominal_length: 0.500 INCHES BETWEEN FIRST AND SECOND GEAR IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-147-8080, 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
3B8059
NSN: 3020-00-147-8080
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_styleW/ KEYWAY BOTH ENDS
design_typeSPUR FIRST GEAR
constructionSOLID
attachment_methodMOUNTING HOLE
hub_nominal_length0.500 INCHES BETWEEN FIRST AND SECOND GEAR IN
hub_nominal_diameter6.625 INCHES BETWEEN FIRST AND SECOND GEAR IN
hub_style_designatorPLAIN BETWEEN FIRST AND SECOND GEAR
keyway_nominal_width0.375 INCHES BOTH ENDS IN
bore_nominal_diameter1.750 INCHES BOTH ENDS IN
nominal_overall_length3.125 INCHES IN
nominal_outside_diameter7.2500 INCHES FIRST GEAR IN
NSN3020-00-147-8080
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR CLUSTER TITLE COMPONENT PN 3B8059 MFR GEAR CLUSTER
KEY FEATURES
•
KEYWAY NOMINAL WIDTH: 0.375 INCHES BOTH ENDS IN
•
BORE NOMINAL DIAMETER: 1.750 INCHES BOTH ENDS IN
•
HUB NOMINAL DIAMETER: 2.625 INCHES SECOND END IN
•
DESIGN TYPE: SPUR FIRST GEAR
•
BORE STYLE: W/ KEYWAY BOTH ENDS
•
NOMINAL OVERALL LENGTH: 3.125 INCHES IN
TECHNICAL CHARACTERISTICS
KEYWAY NOMINAL WIDTH0.375 INCHES BOTH ENDS IN
BORE NOMINAL DIAMETER1.750 INCHES BOTH ENDS IN
HUB NOMINAL DIAMETER2.625 INCHES SECOND END IN
HUB NOMINAL DIAMETER6.625 INCHES BETWEEN FIRST AND SECOND GEAR IN
DESIGN TYPESPUR FIRST GEAR
DESIGN TYPEHELICAL SECOND GEAR
BORE STYLEW/ KEYWAY BOTH ENDS
NOMINAL OVERALL LENGTH3.125 INCHES IN
HUB STYLE DESIGNATORPLAIN BETWEEN FIRST AND SECOND GEAR
HUB STYLE DESIGNATORPLAIN SECOND END
OTHER ITEMS IN FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3020-00-000-0091 3020-00-001-0027 3020-00-001-0028 3020-00-001-0063 3020-00-001-0064 3020-00-001-0066 3020-00-001-0071 3020-00-001-0072
SUBSTITUTES & CROSS-REFERENCES 1
75G19015-1100Reference 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 3B8059?
3B8059 is a GEAR CLUSTER.
What parts can replace 3B8059?
There is 1 known substitute for 3B8059: 75G19015-1100. Substitute compatibility should be verified for your specific system.
What is the NSN for 3B8059?
3B8059 is cataloged in the U.S. Government catalog under NSN 3020-00-147-8080. 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.