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501-7066646 — GEARSHAFT,SPUR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

501-7066646: GEARSHAFT,SPUR.

The GEARSHAFT,SPUR is a the manufacturer industrial component. Key specifications include material: STEEL AND STEEL CORROSION RESISTING AND NICKEL ALLOY, face_width: 1.130 INCHES NOMINAL IN, shaft_type: SHOULDERED, gear_material: STEEL COMP 4340, end_similarity: NOT IDENTICAL, overall_length: 2.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-500-1978, 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
501-7066646
NSN: 3040-01-500-1978
NIINs: 015001978, 015002095, 015003842, 015007914, 015007923, 015007967
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL AND STEEL CORROSION RESISTING AND NICKEL ALLOY
face_width1.130 INCHES NOMINAL IN
shaft_typeSHOULDERED
gear_materialSTEEL COMP 4340
step_quantity5
end_similarityNOT IDENTICAL
overall_length2.500 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
shaft_end_size1.250 INCHES IN
shaft_end_typeSPLINED INVOLUTE, INTERNAL
shaft_materialSTEEL COMP 4340
surface_finish32.0 MICROINCHES
NSN3040-01-500-1978
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEARSHAFT,SPUR TITLE COMPONENT PN 501-7066646 MFR GEARSHAFT,SPUR
KEY FEATURES
•
SHAFT TYPE: SHOULDERED
•
SHAFT MATERIAL: STEEL COMP 4340
•
SHAFT LARGEST DIAMETER: 1.500 INCHES NOMINAL IN
•
SHAFT END SIZE: 1.250 INCHES IN
•
TEETH QUANTITY: 16
•
DIAMETRAL PITCH: 8
•
GEAR OUTSIDE DIAMETER: 2.250 INCHES NOMINAL IN
•
LONGER SHAFT SEGMENT LENGTH: 1.060 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHAFT TYPESHOULDERED
SHAFT MATERIALSTEEL COMP 4340
SHAFT LARGEST DIAMETER1.500 INCHES NOMINAL IN
SHAFT END SIZE1.250 INCHES IN
TEETH QUANTITY16
DIAMETRAL PITCH8
GEAR OUTSIDE DIAMETER2.250 INCHES NOMINAL IN
LONGER SHAFT SEGMENT LENGTH1.060 INCHES NOMINAL IN
OVERALL LENGTH2.500 INCHES NOMINAL IN
GEAR MATERIALSTEEL COMP 4340
SUBSTITUTES & CROSS-REFERENCES 2
H525-7608-4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
H525-7608Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 501-7066646?
501-7066646 is a GEARSHAFT,SPUR.
What parts can replace 501-7066646?
There are 2 known substitutes for 501-7066646: H525-7608-4, H525-7608. Substitute compatibility should be verified for your specific system.
What is the NSN for 501-7066646?
501-7066646 is cataloged in the U.S. Government catalog under NSN 3040-01-500-1978. 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.