139C6456 — GEAR,SPUR

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

139C6456: GEAR,SPUR.

The GEAR,SPUR is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, body_style: WEBBED, OFFSET, SOLID, bore_style: INVOLUTE SPLINE BOTH ENDS, tooth_form: STANDARD, pitch_diameter: 2.3519 INCHES MINIMUM AND 2.3529 INCHES MAXIMUM IN, pressure_angle: 20.0000 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-283-2229, 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

139C6456

NSN: 3020-00-283-2229
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 05606 — GENERAL DYNAMICS-OTS, INC. DIV ORDNANCE AND TACTICAL SYSTEMS (USA)

SPECIFICATIONS

material	STEEL COMP 4140 OVERALL
body_style	WEBBED, OFFSET, SOLID
bore_style	INVOLUTE SPLINE BOTH ENDS
tooth_form	STANDARD
pitch_diameter	2.3519 INCHES MINIMUM AND 2.3529 INCHES MAXIMUM IN
pressure_angle	20.0000 DEGREES
teeth_quantity	18
hardness_rating	30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
spline_quantity	23 BOTH ENDS
style_designator	PROTRUDING HUBS
face_nominal_width	0.520 INCHES IN
hub_nominal_diameter	0.920 INCHES BOTH ENDS IN
NSN	3020-00-283-2229

COMPONENT DIAGRAM

KEY FEATURES

•

BORE NOMINAL DIAMETER: 0.779 INCHES BOTH ENDS IN

•

HUB NOMINAL DIAMETER: 0.920 INCHES BOTH ENDS IN

•

TEETH QUANTITY: 18

•

BODY STYLE: WEBBED, OFFSET, SOLID

•

BORE STYLE: INVOLUTE SPLINE BOTH ENDS

•

NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: 0.120 INCHES FIRST END IN

•

PRECISION CLASSIFICATION: QUALITY NUMBER 9

TECHNICAL CHARACTERISTICS

BORE NOMINAL DIAMETER	0.779 INCHES BOTH ENDS IN
HUB NOMINAL DIAMETER	0.920 INCHES BOTH ENDS IN
TEETH QUANTITY	18
BODY STYLE	WEBBED, OFFSET, SOLID
BORE STYLE	INVOLUTE SPLINE BOTH ENDS
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END	0.120 INCHES FIRST END IN
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END	0.080 INCHES SECOND END IN
PRECISION CLASSIFICATION	QUALITY NUMBER 9
HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATOR	PROTRUDING HUBS

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

3020PL0662967Reference document

Same NSN cross-reference

Reference document — Informative reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is 139C6456?

139C6456 is a GEAR,SPUR.

What parts can replace 139C6456?

There is 1 known substitute for 139C6456: 3020PL0662967. Substitute compatibility should be verified for your specific system.

What is the NSN for 139C6456?

139C6456 is cataloged in the U.S. Government catalog under NSN 3020-00-283-2229. This indicates validated use in U.S. government and defense supply chains.

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139C6456 — GEAR,SPUR

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