12543756 — SHAFT,SHOULDERED

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

12543756: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4340, end_similarity: NOT IDENTICAL, overall_length: 20.420 INCHES NOMINAL IN, surface_finish: 25.0 MICROINCHES, first_end_style: TWO CIRCULAR GROOVES, SPLINED AND INTERNALLY THREADED, second_end_style: TWO CIRCULAR GROOVES, SPLINED AND INTERNALLY THREADED. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-430-4130, 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

12543756

NSN: 3040-01-430-4130
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

material	STEEL COMP 4340
step_quantity	7
end_similarity	NOT IDENTICAL
overall_length	20.420 INCHES NOMINAL IN
surface_finish	25.0 MICROINCHES
first_end_style	TWO CIRCULAR GROOVES, SPLINED AND INTERNALLY THREADED
second_end_style	TWO CIRCULAR GROOVES, SPLINED AND INTERNALLY THREADED
first_end_diameter	3.0023 INCHES NOMINAL IN
second_end_diameter	3.0023 INCHES NOMINAL IN
largest_step_diameter	3.149 INCHES NOMINAL IN
first_end_groove_width	0.1400 INCHES NOMINAL IN
end_item_identification	2520-01-417-4144
NSN	3040-01-430-4130

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 25.0 MICROINCHES

•

STEP QUANTITY: 7

•

FIRST END DIAMETER: 3.0023 INCHES NOMINAL IN

•

FIRST END SPLINE MAJOR DIAMETER: 3.0023 INCHES NOMINAL IN

•

SECOND END DIAMETER: 3.0023 INCHES NOMINAL IN

•

LARGEST STEP DIAMETER: 3.149 INCHES NOMINAL IN

•

SECOND END SPLINE MINOR DIAMETER: 2.8350 INCHES NOMINAL IN

•

FIRST END DISTANCE BETWEEN FIRST AND SECOND GROOVE CENTERS: 1.456 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

SURFACE FINISH	25.0 MICROINCHES
STEP QUANTITY	7
FIRST END DIAMETER	3.0023 INCHES NOMINAL IN
FIRST END SPLINE MAJOR DIAMETER	3.0023 INCHES NOMINAL IN
SECOND END DIAMETER	3.0023 INCHES NOMINAL IN
LARGEST STEP DIAMETER	3.149 INCHES NOMINAL IN
SECOND END SPLINE MINOR DIAMETER	2.8350 INCHES NOMINAL IN
FIRST END DISTANCE BETWEEN FIRST AND SECOND GROOVE CENTERS	1.456 INCHES NOMINAL IN
FIRST END STYLE	TWO CIRCULAR GROOVES, SPLINED AND INTERNALLY THREADED
SECOND END SPLINE MAJOR DIAMETER	3.0023 INCHES NOMINAL IN

OTHER ITEMS IN FSC 3040 — Miscellaneous Power Transmission Equipment

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

3040-00-001-0046 3040-00-001-0047 3040-00-001-0048 3040-00-001-0068 3040-00-001-0077 3040-00-001-0078 3040-00-001-0089 3040-00-001-1224

SUBSTITUTES & CROSS-REFERENCES 2

715530Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

DAX16227Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 12543756?

12543756 is a SHAFT,SHOULDERED.

What parts can replace 12543756?

There are 2 known substitutes for 12543756: 715530, DAX16227. Substitute compatibility should be verified for your specific system.

What is the NSN for 12543756?

12543756 is cataloged in the U.S. Government catalog under NSN 3040-01-430-4130. This indicates validated use in U.S. government and defense supply chains.

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12543756 — SHAFT,SHOULDERED

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