E66S20 — GEAR,SPUR

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

E66S20: GEAR,SPUR.

The GEAR,SPUR is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303S OVERALL, body_style: PLAIN, SOLID, bore_style: PLAIN BOTH ENDS, tooth_form: STANDARD, pitch_diameter: 0.2777 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-970-9086, 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

E66S20

NSN: 3020-00-970-9086
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 12444 — DESIGNATRONICS INC PERFECT GEAR AND INSTRUMENT DIV (USA)

SPECIFICATIONS

material	STEEL COMP 303S OVERALL
body_style	PLAIN, SOLID
bore_style	PLAIN BOTH ENDS
tooth_form	STANDARD
pitch_diameter	0.2777 INCHES NOMINAL IN
pressure_angle	20.0000 DEGREES
teeth_quantity	20
style_designator	PROTRUDING HUB
surface_treatment	PASSIVATE OVERALL
face_nominal_width	0.187 INCHES IN
backlash_designation	GRADE C
hub_nominal_diameter	0.375 INCHES FIRST END IN
NSN	3020-00-970-9086

COMPONENT DIAGRAM

KEY FEATURES

•

BORE NOMINAL DIAMETER: 0.187 INCHES BOTH ENDS IN

•

HUB NOMINAL DIAMETER: 0.375 INCHES FIRST END IN

•

BACKLASH DESIGNATION: GRADE C

•

TEETH QUANTITY: 20

•

BODY STYLE: PLAIN, SOLID

•

BORE STYLE: PLAIN BOTH ENDS

•

NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: 0.219 INCHES FIRST END IN

•

PRECISION CLASSIFICATION: QUALITY NUMBER 10 OR QUALITY NUMBER 11

TECHNICAL CHARACTERISTICS

BORE NOMINAL DIAMETER	0.187 INCHES BOTH ENDS IN
HUB NOMINAL DIAMETER	0.375 INCHES FIRST END IN
BACKLASH DESIGNATION	GRADE C
TEETH QUANTITY	20
BODY STYLE	PLAIN, SOLID
BORE STYLE	PLAIN BOTH ENDS
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END	0.219 INCHES FIRST END IN
PRECISION CLASSIFICATION	QUALITY NUMBER 10 OR QUALITY NUMBER 11
STYLE DESIGNATOR	PROTRUDING HUB
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL

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

CS3020-0021Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is E66S20?

E66S20 is a GEAR,SPUR.

What parts can replace E66S20?

There is 1 known substitute for E66S20: CS3020-0021. Substitute compatibility should be verified for your specific system.

What is the NSN for E66S20?

E66S20 is cataloged in the U.S. Government catalog under NSN 3020-00-970-9086. This indicates validated use in U.S. government and defense supply chains.

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