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42277D131 — GEAR CLUSTER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

42277D131: GEAR CLUSTER.

The GEAR CLUSTER is a the manufacturer industrial component. Key specifications include material: STEEL SECOND GEARSTEEL SECOND GEAR, bore_style: W/COUNTERBORE BOTH ENDSW/COUNTERBORE BOTH ENDS, design_type: SPUR ALL GEARSSPUR ALL GEARS, construction: ASSEMBLEDASSEMBLED, hub_nominal_length: 0.062 INCHES BETWEEN FIRST AND SECOND GEAR0.062 INCHES BETWEEN FIRST AND SECOND GEAR IN, hub_nominal_diameter: 0.719 INCHES BETWEEN FIRST AND SECOND GEAR0.719 INCHES BETWEEN FIRST AND SECOND GEAR IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-076-3464, 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
42277D131
NSN: 3020-01-076-3464
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 82402 — TRIUMPH GEAR SYSTEMS INC DBA TRIUMPH GEAR SYSTEMS INC (USA)
SPECIFICATIONS
materialSTEEL SECOND GEARSTEEL SECOND GEAR
bore_styleW/COUNTERBORE BOTH ENDSW/COUNTERBORE BOTH ENDS
design_typeSPUR ALL GEARSSPUR ALL GEARS
constructionASSEMBLEDASSEMBLED
hub_nominal_length0.062 INCHES BETWEEN FIRST AND SECOND GEAR0.062 INCHES BETWEEN FIRST AND SECOND GEAR IN
hub_nominal_diameter0.719 INCHES BETWEEN FIRST AND SECOND GEAR0.719 INCHES BETWEEN FIRST AND SECOND GEAR IN
hub_style_designatorPLAIN BETWEEN FIRST AND SECOND GEARPLAIN BETWEEN FIRST AND SECOND GEAR
bore_nominal_diameter0.437 INCHES BOTH ENDS0.437 INCHES BOTH ENDS IN
nominal_overall_length0.482 INCHES0.482 INCHES IN
nominal_outside_diameter1.812 INCHES FIRST GEAR1.812 INCHES FIRST GEAR IN
counterbore_nominal_depth0.094 INCHES FIRST END0.094 INCHES FIRST END IN
counterbore_nominal_diameter0.440 INCHES FIRST END0.440 INCHES FIRST END IN
NSN3020-01-076-3464
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR CLUSTER TITLE COMPONENT PN 42277D131 MFR GEAR CLUSTER
KEY FEATURES
•
BORE NOMINAL DIAMETER: 0.437 INCHES BOTH ENDS0.437 INCHES BOTH ENDS IN
•
HUB NOMINAL DIAMETER: 0.719 INCHES BETWEEN FIRST AND SECOND GEAR0.719 INCHES BETWEEN FIRST AND SECOND GEAR IN
•
COUNTERBORE NOMINAL DIAMETER: 0.440 INCHES FIRST END0.440 INCHES FIRST END IN
•
DESIGN TYPE: SPUR ALL GEARSSPUR ALL GEARS
•
BORE STYLE: W/COUNTERBORE BOTH ENDSW/COUNTERBORE BOTH ENDS
•
NOMINAL OVERALL LENGTH: 0.482 INCHES0.482 INCHES IN
•
HUB STYLE DESIGNATOR: PLAIN BETWEEN FIRST AND SECOND GEARPLAIN BETWEEN FIRST AND SECOND GEAR
•
HUB NOMINAL LENGTH: 0.062 INCHES BETWEEN FIRST AND SECOND GEAR0.062 INCHES BETWEEN FIRST AND SECOND GEAR IN
TECHNICAL CHARACTERISTICS
BORE NOMINAL DIAMETER0.437 INCHES BOTH ENDS0.437 INCHES BOTH ENDS IN
HUB NOMINAL DIAMETER0.719 INCHES BETWEEN FIRST AND SECOND GEAR0.719 INCHES BETWEEN FIRST AND SECOND GEAR IN
COUNTERBORE NOMINAL DIAMETER0.440 INCHES FIRST END0.440 INCHES FIRST END IN
DESIGN TYPESPUR ALL GEARSSPUR ALL GEARS
BORE STYLEW/COUNTERBORE BOTH ENDSW/COUNTERBORE BOTH ENDS
NOMINAL OVERALL LENGTH0.482 INCHES0.482 INCHES IN
HUB STYLE DESIGNATORPLAIN BETWEEN FIRST AND SECOND GEARPLAIN BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL LENGTH0.062 INCHES BETWEEN FIRST AND SECOND GEAR0.062 INCHES BETWEEN FIRST AND SECOND GEAR IN
NOMINAL OUTSIDE DIAMETER0.875 INCHES SECOND GEAR0.875 INCHES SECOND GEAR IN
NOMINAL OUTSIDE DIAMETER1.812 INCHES FIRST GEAR1.812 INCHES FIRST GEAR IN
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
42277-131Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 42277D131?
42277D131 is a GEAR CLUSTER.
What parts can replace 42277D131?
There is 1 known substitute for 42277D131: 42277-131. Substitute compatibility should be verified for your specific system.
What is the NSN for 42277D131?
42277D131 is cataloged in the U.S. Government catalog under NSN 3020-01-076-3464. 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.