185N563 — GEAR,SPUR

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

185N563: GEAR,SPUR.

The GEAR,SPUR is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416 OVERALL, body_style: PLAIN, WITH LIGHTENING HOLES, bore_style: TAPERED W/KEYWAY FIRST END, tooth_form: STANDARD, pitch_diameter: 3.9375 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-287-6756, 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

185N563

NSN: 3020-00-287-6756
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 73842 — GOODYEAR TIRE AND RUBBER CO THE (USA)

SPECIFICATIONS

material	STEEL COMP 416 OVERALL
body_style	PLAIN, WITH LIGHTENING HOLES
bore_style	TAPERED W/KEYWAY FIRST END
tooth_form	STANDARD
pitch_diameter	3.9375 INCHES NOMINAL IN
pressure_angle	20.0000 DEGREES
teeth_quantity	126
style_designator	HUBLESS
face_nominal_width	0.247 INCHES IN
keyway_nominal_width	0.096 INCHES BOTH ENDS IN
nominal_outside_diameter	4.000 INCHES IN
taper_major_nominal_diameter	0.339 INCHES BOTH ENDS IN
NSN	3020-00-287-6756

COMPONENT DIAGRAM

KEY FEATURES

•

KEYWAY NOMINAL WIDTH: 0.096 INCHES BOTH ENDS IN

•

TEETH QUANTITY: 126

•

BODY STYLE: PLAIN, WITH LIGHTENING HOLES

•

BORE STYLE: TAPERED W/KEYWAY FIRST END

•

STYLE DESIGNATOR: HUBLESS

•

TAPER MAJOR NOMINAL DIAMETER: 0.339 INCHES BOTH ENDS IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,CLASS 6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

PITCH DIAMETER: 3.9375 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

KEYWAY NOMINAL WIDTH	0.096 INCHES BOTH ENDS IN
TEETH QUANTITY	126
BODY STYLE	PLAIN, WITH LIGHTENING HOLES
BORE STYLE	TAPERED W/KEYWAY FIRST END
STYLE DESIGNATOR	HUBLESS
TAPER MAJOR NOMINAL DIAMETER	0.339 INCHES BOTH ENDS IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763,CLASS 6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PITCH DIAMETER	3.9375 INCHES NOMINAL IN
TOOTH FORM	STANDARD
NOMINAL OUTSIDE DIAMETER	4.000 INCHES IN

SUBSTITUTES & CROSS-REFERENCES 1

117-531Reference 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 185N563?

185N563 is a GEAR,SPUR.

What parts can replace 185N563?

There is 1 known substitute for 185N563: 117-531. Substitute compatibility should be verified for your specific system.

What is the NSN for 185N563?

185N563 is cataloged in the U.S. Government catalog under NSN 3020-00-287-6756. This indicates validated use in U.S. government and defense supply chains.

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