7521686 — GEAR,HELICAL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

7521686: GEAR,HELICAL.

The GEAR,HELICAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_style: WEBBED, SOLID, bore_style: PLAIN BOTH ENDS, teeth_type: SINGLE HELIX, tooth_form: STANDARD, helix_angle: 23.7587 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-752-1686, 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

7521686

NSN: 3020-00-752-1686
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

material	STEEL OVERALL
body_style	WEBBED, SOLID
bore_style	PLAIN BOTH ENDS
teeth_type	SINGLE HELIX
tooth_form	STANDARD
helix_angle	23.7587 DEGREES
pitch_diameter	9.9000 INCHES NOMINAL IN
pressure_angle	18.4240 DEGREES
teeth_quantity	33
tooth_direction	LEFT
style_designator	HUBLESS, RECESSED BODY
attachment_method	MOUNTING HOLE
NSN	3020-00-752-1686

COMPONENT DIAGRAM

KEY FEATURES

•

BORE NOMINAL DIAMETER: 6.1255 INCHES BOTH ENDS IN

•

HELIX ANGLE: 23.7587 DEGREES

•

TEETH QUANTITY: 33

•

BODY STYLE: WEBBED, SOLID

•

TOOTH DIRECTION: LEFT

•

BORE STYLE: PLAIN BOTH ENDS

•

MOUNTING HOLE TYPE AND QUANTITY: 8 PLAIN AXIALLY THROUGH BODY FIRST END

•

MOUNTING HOLE NOMINAL DIAMETER: 0.565 INCHES AXIALLY THROUGH BODY FIRST END IN

TECHNICAL CHARACTERISTICS

BORE NOMINAL DIAMETER	6.1255 INCHES BOTH ENDS IN
HELIX ANGLE	23.7587 DEGREES
TEETH QUANTITY	33
BODY STYLE	WEBBED, SOLID
TOOTH DIRECTION	LEFT
BORE STYLE	PLAIN BOTH ENDS
MOUNTING HOLE TYPE AND QUANTITY	8 PLAIN AXIALLY THROUGH BODY FIRST END
MOUNTING HOLE NOMINAL DIAMETER	0.565 INCHES AXIALLY THROUGH BODY FIRST END IN
TEETH TYPE	SINGLE HELIX
STYLE DESIGNATOR	HUBLESS, RECESSED BODY

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 4

3892B1120Reference document

Same NSN cross-reference

Reference document — Secondary reference

801E561Reference document

Same NSN cross-reference

Reference document — Secondary reference

3020007521686Reference document

Same NSN cross-reference

Reference document — Secondary reference

2520007521686Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 7521686?

7521686 is a GEAR,HELICAL.

What parts can replace 7521686?

There are 4 known substitutes for 7521686: 3892B1120, 801E561, 3020007521686 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 7521686?

7521686 is cataloged in the U.S. Government catalog under NSN 3020-00-752-1686. This indicates validated use in U.S. government and defense supply chains.

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7521686 — GEAR,HELICAL

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