7748587 — GEAR,HELICAL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

7748587: GEAR,HELICAL.

The GEAR,HELICAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8620 OVERALL, body_style: PLAIN, SOLID, bore_style: INVOLUTE SPLINE BOTH ENDS, teeth_type: SINGLE HELIX, tooth_form: STANDARD, helix_angle: 17.5447 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-953-9909, 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

7748587

NSN: 3020-00-953-9909
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

material	STEEL COMP 8620 OVERALL
body_style	PLAIN, SOLID
bore_style	INVOLUTE SPLINE BOTH ENDS
teeth_type	SINGLE HELIX
tooth_form	STANDARD
helix_angle	17.5447 DEGREES
pitch_diameter	5.2825 INCHES NOMINAL IN
pressure_angle	17.5000 DEGREES
teeth_quantity	26
hardness_rating	57.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM OVERALL
spline_quantity	34 BOTH ENDS
tooth_direction	LEFT
NSN	3020-00-953-9909

COMPONENT DIAGRAM

KEY FEATURES

•

BORE NOMINAL DIAMETER: 4.505 INCHES BOTH ENDS IN

•

HELIX ANGLE: 17.5447 DEGREES

•

HUB NOMINAL DIAMETER: 4.656 INCHES BETWEEN BODY AND FLANGE IN

•

TEETH QUANTITY: 26

•

BODY STYLE: PLAIN, SOLID

•

TOOTH DIRECTION: LEFT

•

FLANGE NOMINAL THICKNESS: 0.900 INCHES IN

•

FLANGE NOMINAL DIAMETER: 5.326 INCHES IN

TECHNICAL CHARACTERISTICS

BORE NOMINAL DIAMETER	4.505 INCHES BOTH ENDS IN
HELIX ANGLE	17.5447 DEGREES
HUB NOMINAL DIAMETER	4.656 INCHES BETWEEN BODY AND FLANGE IN
TEETH QUANTITY	26
BODY STYLE	PLAIN, SOLID
TOOTH DIRECTION	LEFT
FLANGE NOMINAL THICKNESS	0.900 INCHES IN
FLANGE NOMINAL DIAMETER	5.326 INCHES IN
BORE STYLE	INVOLUTE SPLINE BOTH ENDS
TEETH TYPE	SINGLE HELIX

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

2520009539909Reference 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 7748587?

7748587 is a GEAR,HELICAL.

What parts can replace 7748587?

There is 1 known substitute for 7748587: 2520009539909. Substitute compatibility should be verified for your specific system.

What is the NSN for 7748587?

7748587 is cataloged in the U.S. Government catalog under NSN 3020-00-953-9909. This indicates validated use in U.S. government and defense supply chains.

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7748587 — GEAR,HELICAL

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