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A-6639 — GEAR,BEVEL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

A-6639: GEAR,BEVEL.

The GEAR,BEVEL is a the manufacturer industrial component. Key specifications include end_item_identification: 4930011392492. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-724-8379, 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
A-6639
NSN: 3020-00-724-8379
NIINs: 007248379, 012002277
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 17472 — EATON AEROSPACE LLC DBA EATON INOAC DIV FUEL & MOTION CONTROL SYSTEMS DIVISION (USA)
SPECIFICATIONS
end_item_identification4930011392492
NSN3020-00-724-8379
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,BEVEL TITLE COMPONENT PN A-6639 MFR GEAR,BEVEL
KEY FEATURES
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KEYWAY NOMINAL WIDTH: 0.064 INCHES BOTH ENDS IN
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BORE NOMINAL DIAMETER: 0.219 INCHES BOTH ENDS IN
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HUB NOMINAL DIAMETER: 0.406 INCHES SECOND END IN
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BACKLASH DESIGNATION: GRADE C
•
TEETH QUANTITY: 22
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BODY STYLE: PLAIN, SOLID
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PITCH ANGLE: 45.0000 DEGREES
•
BORE STYLE: W/ KEYWAY BOTH ENDS
TECHNICAL CHARACTERISTICS
KEYWAY NOMINAL WIDTH0.064 INCHES BOTH ENDS IN
BORE NOMINAL DIAMETER0.219 INCHES BOTH ENDS IN
HUB NOMINAL DIAMETER0.406 INCHES SECOND END IN
BACKLASH DESIGNATIONGRADE C
TEETH QUANTITY22
BODY STYLEPLAIN, SOLID
PITCH ANGLE45.0000 DEGREES
BORE STYLEW/ KEYWAY BOTH ENDS
TEETH TYPESTRAIGHT
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
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 A-6639?
A-6639 is a GEAR,BEVEL.
What is the NSN for A-6639?
A-6639 is cataloged in the U.S. Government catalog under NSN 3020-00-724-8379. 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.