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715551 — GEAR,SPUR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

715551: GEAR,SPUR.

The GEAR,SPUR is a the manufacturer industrial component. Key specifications include pitch_diameter: 3.5000 INCHES NOMINAL IN, pressure_angle: 25.0000 DEGREES, teeth_quantity: 21, special_features: USED ON HERCULES, face_nominal_width: 2.430 INCHES IN, end_item_identification: 2520-01-417-4144. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-431-8929, 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
715551
NSN: 3020-01-431-8929
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 61208 — TWIN DISC, INCORPORATED DBA TWIN DISC MID-ATLANTIC (USA)
SPECIFICATIONS
pitch_diameter3.5000 INCHES NOMINAL IN
pressure_angle25.0000 DEGREES
teeth_quantity21
special_featuresUSED ON HERCULES
face_nominal_width2.430 INCHES IN
end_item_identification2520-01-417-4144
nominal_outside_diameter3.950 INCHES IN
NSN3020-01-431-8929
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,SPUR TITLE COMPONENT PN 715551 MFR GEAR,SPUR
KEY FEATURES
•
TEETH QUANTITY: 21
•
PITCH DIAMETER: 3.5000 INCHES NOMINAL IN
•
NOMINAL OUTSIDE DIAMETER: 3.950 INCHES IN
•
PRESSURE ANGLE: 25.0000 DEGREES
•
FACE NOMINAL WIDTH: 2.430 INCHES IN
TECHNICAL CHARACTERISTICS
TEETH QUANTITY21
PITCH DIAMETER3.5000 INCHES NOMINAL IN
NOMINAL OUTSIDE DIAMETER3.950 INCHES IN
SPECIAL FEATURESUSED ON HERCULES
END ITEM IDENTIFICATION2520-01-417-4144
PRESSURE ANGLE25.0000 DEGREES
FACE NOMINAL WIDTH2.430 INCHES 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

No substitute or cross-reference records for this part.

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 715551?
715551 is a GEAR,SPUR.
What is the NSN for 715551?
715551 is cataloged in the U.S. Government catalog under NSN 3020-01-431-8929. 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.