7974247 — GEAR,HELICAL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

7974247: GEAR,HELICAL.

The GEAR,HELICAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_style: WEBBED, OFFSET, SOLIDWEBBED, OFFSET, SOLID, bore_style: W/ KEYWAY BOTH ENDSW/ KEYWAY BOTH ENDS, teeth_type: SINGLE HELIXSINGLE HELIX, tooth_form: STUBSTUB, helix_angle: 20.1194 DEGREES20.1194 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-513-9652, 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

7974247

NSN: 3020-00-513-9652
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, OFFSET, SOLIDWEBBED, OFFSET, SOLID
bore_style	W/ KEYWAY BOTH ENDSW/ KEYWAY BOTH ENDS
teeth_type	SINGLE HELIXSINGLE HELIX
tooth_form	STUBSTUB
helix_angle	20.1194 DEGREES20.1194 DEGREES
pitch_diameter	6.9231 INCHES NOMINAL6.9231 INCHES NOMINAL IN
pressure_angle	22.5000 DEGREES22.5000 DEGREES
teeth_quantity	3030
hardness_rating	60.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM OVERALL63.0 ROCKWELL C MAXIMUM OVERALL
tooth_direction	RIGHTRIGHT
special_features	COUNTERBORE ON 1ST END W/ 2.625 IN. NOM DIA,0.0625 IN. NOM DEPTHCOUNTERBORE ON 1ST END W/ 2.625 IN. NOM DIA,0.0625 IN. NOM DEPTH IN
NSN	3020-00-513-9652

COMPONENT DIAGRAM

KEY FEATURES

•

KEYWAY NOMINAL WIDTH: 0.497 INCHES BOTH ENDS0.497 INCHES BOTH ENDS IN

•

BORE NOMINAL DIAMETER: 2.500 INCHES BOTH ENDS2.500 INCHES BOTH ENDS IN

•

HELIX ANGLE: 20.1194 DEGREES20.1194 DEGREES

•

HUB NOMINAL DIAMETER: 3.410 INCHES BOTH ENDS3.410 INCHES BOTH ENDS IN

•

NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END: 0.313 INCHES SECOND END0.313 INCHES SECOND END IN

•

TEETH QUANTITY: 3030

•

BODY STYLE: WEBBED, OFFSET, SOLIDWEBBED, OFFSET, SOLID

•

TOOTH DIRECTION: RIGHTRIGHT

TECHNICAL CHARACTERISTICS

KEYWAY NOMINAL WIDTH	0.497 INCHES BOTH ENDS0.497 INCHES BOTH ENDS IN
BORE NOMINAL DIAMETER	2.500 INCHES BOTH ENDS2.500 INCHES BOTH ENDS IN
HELIX ANGLE	20.1194 DEGREES20.1194 DEGREES
HUB NOMINAL DIAMETER	3.410 INCHES BOTH ENDS3.410 INCHES BOTH ENDS IN
NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END	0.313 INCHES SECOND END0.313 INCHES SECOND END IN
TEETH QUANTITY	3030
BODY STYLE	WEBBED, OFFSET, SOLIDWEBBED, OFFSET, SOLID
TOOTH DIRECTION	RIGHTRIGHT
BORE STYLE	W/ KEYWAY BOTH ENDSW/ KEYWAY BOTH ENDS
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END	0.938 INCHES BOTH ENDS0.938 INCHES BOTH ENDS 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 1

747KB2109Reference 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 7974247?

7974247 is a GEAR,HELICAL.

What parts can replace 7974247?

There is 1 known substitute for 7974247: 747KB2109. Substitute compatibility should be verified for your specific system.

What is the NSN for 7974247?

7974247 is cataloged in the U.S. Government catalog under NSN 3020-00-513-9652. This indicates validated use in U.S. government and defense supply chains.

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7974247 — GEAR,HELICAL

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