SX-B4-21 — GEAR ASSEMBLY,SPEED DECREASER

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

SX-B4-21: GEAR ASSEMBLY,SPEED DECREASER.

The GEAR ASSEMBLY,SPEED DECREASER is a the manufacturer industrial component. Key specifications include design_type: SINGLE REDUCTION, total_ratio: 50 TO 1, shaft_position: OUTPUT SHAFT EXTENDS TO LEFT AND RIGHT, input_shaft_type: STRAIGHT, output_shaft_type: STRAIGHT, lubrication_system: SEALED OIL BEARING. This part is cataloged in the U.S.

Government catalog under NSN 3010-01-131-9702, 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

SX-B4-21

NSN: 3010-01-131-9702
FSC: 3010 — Torque Converters and Speed Changers
CAGE: 29440 — W. M. BERG, INC. (USA)

SPECIFICATIONS

design_type	SINGLE REDUCTION
total_ratio	50 TO 1
shaft_position	OUTPUT SHAFT EXTENDS TO LEFT AND RIGHT
input_shaft_type	STRAIGHT
output_shaft_type	STRAIGHT
lubrication_system	SEALED OIL BEARING
input_shaft_quantity	1
output_shaft_quantity	1
NSN	3010-01-131-9702

COMPONENT DIAGRAM

KEY FEATURES

•

INPUT SHAFT QUANTITY: 1

•

DESIGN TYPE: SINGLE REDUCTION

•

LUBRICATION SYSTEM: SEALED OIL BEARING

•

INPUT SHAFT TYPE: STRAIGHT

•

SHAFT POSITION: OUTPUT SHAFT EXTENDS TO LEFT AND RIGHT

•

TOTAL RATIO: 50 TO 1

•

OUTPUT SHAFT TYPE: STRAIGHT

•

OUTPUT SHAFT QUANTITY: 1

TECHNICAL CHARACTERISTICS

INPUT SHAFT QUANTITY	1
DESIGN TYPE	SINGLE REDUCTION
LUBRICATION SYSTEM	SEALED OIL BEARING
INPUT SHAFT TYPE	STRAIGHT
SHAFT POSITION	OUTPUT SHAFT EXTENDS TO LEFT AND RIGHT
TOTAL RATIO	50 TO 1
OUTPUT SHAFT TYPE	STRAIGHT
OUTPUT SHAFT QUANTITY	1

SUBSTITUTES & CROSS-REFERENCES 2

GLX-N3-21Reference document

Same NSN cross-reference

Reference document — Secondary reference

DES-21Reference 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 SX-B4-21?

SX-B4-21 is a GEAR ASSEMBLY,SPEED DECREASER.

What parts can replace SX-B4-21?

There are 2 known substitutes for SX-B4-21: GLX-N3-21, DES-21. Substitute compatibility should be verified for your specific system.

What is the NSN for SX-B4-21?

SX-B4-21 is cataloged in the U.S. Government catalog under NSN 3010-01-131-9702. This indicates validated use in U.S. government and defense supply chains.

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SX-B4-21 — GEAR ASSEMBLY,SPEED DECREASER

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