4B44SD — STARTER,ENGINE,ELECTRICAL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

4B44SD: STARTER,ENGINE,ELECTRICAL.

The STARTER,ENGINE,ELECTRICAL is a the manufacturer industrial component. Key specifications include bearings: NOT INCLUDED, bore_type: STRAIGHT, bore_feature: INCLUDED, overall_length: 3.250 INCHES NOMINAL IN, pitch_diameter: 4.000 INCHES NOMINAL IN, outside_diameter: 4.350 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-292-3692, 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

4B44SD

NSN: 3020-01-292-3692
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 05506 — MARTIN SPROCKET AND GEAR INC (USA)

SPECIFICATIONS

bearings	NOT INCLUDED
bore_type	STRAIGHT
bore_feature	INCLUDED
groove_shape	V
overall_length	3.250 INCHES NOMINAL IN
pitch_diameter	4.000 INCHES NOMINAL IN
groove_quantity	4
outside_diameter	4.350 INCHES NOMINAL IN
special_features	USED ON 3805-01-240-0995
counterbore_feature	NOT INCLUDED
NSN	3020-01-292-3692

COMPONENT DIAGRAM

KEY FEATURES

•

BORE FEATURE: INCLUDED

•

GROOVE SHAPE: V

•

OUTSIDE DIAMETER: 4.350 INCHES NOMINAL IN

•

PITCH DIAMETER: 4.000 INCHES NOMINAL IN

•

BORE TYPE: STRAIGHT

•

BEARINGS: NOT INCLUDED

•

GROOVE QUANTITY: 4

TECHNICAL CHARACTERISTICS

BORE FEATURE	INCLUDED
GROOVE SHAPE	V
OUTSIDE DIAMETER	4.350 INCHES NOMINAL IN
PITCH DIAMETER	4.000 INCHES NOMINAL IN
OVERALL LENGTH	3.250 INCHES NOMINAL IN
BORE TYPE	STRAIGHT
BEARINGS	NOT INCLUDED
GROOVE QUANTITY	4
SPECIAL FEATURES	USED ON 3805-01-240-0995
COUNTERBORE FEATURE	NOT INCLUDED

SUBSTITUTES & CROSS-REFERENCES 2

170-236Reference document

Same NSN cross-reference

Reference document — Secondary reference

QD4AB40Same 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)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 4B44SD?

4B44SD is a STARTER,ENGINE,ELECTRICAL.

What parts can replace 4B44SD?

There are 2 known substitutes for 4B44SD: 170-236, QD4AB40. Substitute compatibility should be verified for your specific system.

What is the NSN for 4B44SD?

4B44SD is cataloged in the U.S. Government catalog under NSN 3020-01-292-3692. This indicates validated use in U.S. government and defense supply chains.

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4B44SD — STARTER,ENGINE,ELECTRICAL

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