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4820-112SH3125 — GEAR,SPUR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

4820-112SH3125: GEAR,SPUR.

The GEAR,SPUR is a the manufacturer industrial component. Key specifications include body_style: PLAIN, SOLID, tooth_form: STANDARD, pitch_diameter: 2.3333 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES, teeth_quantity: 112, style_designator: PROTRUDING HUB. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-155-4320, 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
4820-112SH3125
NSN: 3020-00-155-4320
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 11915 — SMALLWOOD AND SON MACHINE CO (USA)
SPECIFICATIONS
body_stylePLAIN, SOLID
tooth_formSTANDARD
pitch_diameter2.3333 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity112
style_designatorPROTRUDING HUB
attachment_methodMOUNTING HOLE
face_nominal_width0.125 INCHES IN
hub_nominal_diameter0.875 INCHES FIRST END IN
bore_nominal_diameter0.313 INCHES BOTH ENDS IN
nominal_overall_length0.375 INCHES IN
precision_classificationQUALITY NUMBER 10
NSN3020-00-155-4320
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,SPUR TITLE COMPONENT PN 4820-112SH3125 MFR GEAR,SPUR
KEY FEATURES
•
BORE NOMINAL DIAMETER: 0.313 INCHES BOTH ENDS IN
•
HUB NOMINAL DIAMETER: 0.875 INCHES FIRST END IN
•
TEETH QUANTITY: 112
•
BODY STYLE: PLAIN, SOLID
•
MOUNTING HOLE TYPE AND QUANTITY: 1 THREADED TRANSVERSELY THROUGH HUB FIRST END
•
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: 0.250 INCHES FIRST END IN
•
PRECISION CLASSIFICATION: QUALITY NUMBER 10
•
NOMINAL OVERALL LENGTH: 0.375 INCHES IN
TECHNICAL CHARACTERISTICS
BORE NOMINAL DIAMETER0.313 INCHES BOTH ENDS IN
HUB NOMINAL DIAMETER0.875 INCHES FIRST END IN
TEETH QUANTITY112
BODY STYLEPLAIN, SOLID
MOUNTING HOLE TYPE AND QUANTITY1 THREADED TRANSVERSELY THROUGH HUB FIRST END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.250 INCHES FIRST END IN
PRECISION CLASSIFICATIONQUALITY NUMBER 10
NOMINAL OVERALL LENGTH0.375 INCHES IN
STYLE DESIGNATORPROTRUDING HUB
PITCH DIAMETER2.3333 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
400-0127Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4820-112SH3125?
4820-112SH3125 is a GEAR,SPUR.
What parts can replace 4820-112SH3125?
There is 1 known substitute for 4820-112SH3125: 400-0127. Substitute compatibility should be verified for your specific system.
What is the NSN for 4820-112SH3125?
4820-112SH3125 is cataloged in the U.S. Government catalog under NSN 3020-00-155-4320. 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.