B8A-66 — GEAR,SPUR

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

B8A-66: GEAR,SPUR.

The GEAR,SPUR is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, body_style: PLAIN, SOLID, bore_style: PLAIN BOTH ENDS, tooth_form: STANDARD, pitch_diameter: 0.5500 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-012-9587, 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

B8A-66

NSN: 3020-01-012-9587
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 00328 — DESIGNATRONICS INCORPORATED DIV STERLING INSTRUMENTS DIV (USA)

SPECIFICATIONS

material	ALUMINUM ALLOY 2024 OVERALL
body_style	PLAIN, SOLID
bore_style	PLAIN BOTH ENDS
tooth_form	STANDARD
pitch_diameter	0.5500 INCHES NOMINAL IN
pressure_angle	20.0000 DEGREES
teeth_quantity	66
style_designator	PROTRUDING HUB
surface_treatment	ANODIZE OVERALL
face_nominal_width	0.062 INCHES IN
hub_nominal_diameter	0.3120 INCHES FIRST END IN
hub_style_designator	PINNED FIRST END
NSN	3020-01-012-9587

COMPONENT DIAGRAM

KEY FEATURES

•

BORE NOMINAL DIAMETER: 0.1250 INCHES BOTH ENDS IN

•

HUB NOMINAL DIAMETER: 0.3120 INCHES FIRST END IN

•

TEETH QUANTITY: 66

•

BODY STYLE: PLAIN, SOLID

•

BORE STYLE: PLAIN BOTH ENDS

•

NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: 0.1880 INCHES FIRST END IN

•

PRECISION CLASSIFICATION: QUALITY NUMBER 10

•

STYLE DESIGNATOR: PROTRUDING HUB

TECHNICAL CHARACTERISTICS

BORE NOMINAL DIAMETER	0.1250 INCHES BOTH ENDS IN
HUB NOMINAL DIAMETER	0.3120 INCHES FIRST END IN
TEETH QUANTITY	66
BODY STYLE	PLAIN, SOLID
BORE STYLE	PLAIN BOTH ENDS
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END	0.1880 INCHES FIRST END IN
PRECISION CLASSIFICATION	QUALITY NUMBER 10
STYLE DESIGNATOR	PROTRUDING HUB
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PITCH DIAMETER	0.5500 INCHES NOMINAL 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

P120A5-66Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is B8A-66?

B8A-66 is a GEAR,SPUR.

What parts can replace B8A-66?

There is 1 known substitute for B8A-66: P120A5-66. Substitute compatibility should be verified for your specific system.

What is the NSN for B8A-66?

B8A-66 is cataloged in the U.S. Government catalog under NSN 3020-01-012-9587. This indicates validated use in U.S. government and defense supply chains.

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