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7972959 — GEARSHAFT,SPUR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

7972959: GEARSHAFT,SPUR.

The GEARSHAFT,SPUR is a the manufacturer industrial component. Key specifications include face_width: 1.531 INCHES NOMINAL IN, shaft_type: SHOULDERED, gear_material: STEEL COMP 8620 AND STEEL COMP 8625, overall_length: 14.544 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES, shaft_end_size: 1.875 INCHES AND 1.375 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-332-0066, 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
7972959
NSN: 3040-00-332-0066
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
face_width1.531 INCHES NOMINAL IN
shaft_typeSHOULDERED
gear_materialSTEEL COMP 8620 AND STEEL COMP 8625
overall_length14.544 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
shaft_end_size1.875 INCHES AND 1.375 INCHES IN
shaft_end_typeSPLINED INVOLUTE AND THREADED EXTERNAL
shaft_materialSTEEL COMP 8620
teeth_quantity32
diametral_pitch6/8
gear_outside_diameter5.583 INCHES NOMINAL IN
gear_location_on_shaftOFF CENTER BETWEEN ENDS OF SHAFT
NSN3040-00-332-0066
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEARSHAFT,SPUR TITLE COMPONENT PN 7972959 MFR GEARSHAFT,SPUR
KEY FEATURES
•
SHAFT TYPE: SHOULDERED
•
SHAFT MATERIAL: STEEL COMP 8620
•
SHAFT LARGEST DIAMETER: 2.133 INCHES MINIMUM AND 2.138 INCHES MAXIMUM IN
•
SHAFT END SIZE: 1.875 INCHES AND 1.375 INCHES IN
•
TEETH QUANTITY: 32
•
DIAMETRAL PITCH: 6/8
•
GEAR OUTSIDE DIAMETER: 5.583 INCHES NOMINAL IN
•
LONGER SHAFT SEGMENT LENGTH: 11.268 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHAFT TYPESHOULDERED
SHAFT MATERIALSTEEL COMP 8620
SHAFT LARGEST DIAMETER2.133 INCHES MINIMUM AND 2.138 INCHES MAXIMUM IN
SHAFT END SIZE1.875 INCHES AND 1.375 INCHES IN
TEETH QUANTITY32
DIAMETRAL PITCH6/8
GEAR OUTSIDE DIAMETER5.583 INCHES NOMINAL IN
LONGER SHAFT SEGMENT LENGTH11.268 INCHES NOMINAL IN
OVERALL LENGTH14.544 INCHES NOMINAL IN
GEAR MATERIALSTEEL COMP 8620 AND STEEL COMP 8625
OTHER ITEMS IN FSC 3040 — Miscellaneous Power Transmission Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3040-00-001-0046 3040-00-001-0047 3040-00-001-0048 3040-00-001-0068 3040-00-001-0077 3040-00-001-0078 3040-00-001-0089 3040-00-001-1224
SUBSTITUTES & CROSS-REFERENCES 1
3040003320066Reference document
Same NSN cross-reference
Reference document — Informative 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 7972959?
7972959 is a GEARSHAFT,SPUR.
What parts can replace 7972959?
There is 1 known substitute for 7972959: 3040003320066. Substitute compatibility should be verified for your specific system.
What is the NSN for 7972959?
7972959 is cataloged in the U.S. Government catalog under NSN 3040-00-332-0066. 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.