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A4343A — SHAFT,SHOULDERED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

A4343A: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, end_similarity: NOT IDENTICAL, overall_length: 12.469 INCHES NOMINAL IN, first_end_style: SPLINED (STRAIGHT), second_end_style: INTERNAL THREADED, first_end_diameter: 2.9310 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-901-0995, 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
A4343A
NSN: 3040-00-901-0995
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 61208 — TWIN DISC, INCORPORATED DBA TWIN DISC MID-ATLANTIC (USA)
SPECIFICATIONS
materialSTEEL
step_quantity4
end_similarityNOT IDENTICAL
overall_length12.469 INCHES NOMINAL IN
first_end_styleSPLINED (STRAIGHT)
second_end_styleINTERNAL THREADED
first_end_diameter2.9310 INCHES NOMINAL IN
second_end_diameter2.5600 INCHES NOMINAL IN
largest_step_diameter3.500 INCHES NOMINAL IN
first_end_spline_length3.500 INCHES NOMINAL IN
first_end_spline_quantity24
first_end_spline_major_diameter2.9310 INCHES NOMINAL IN
NSN3040-00-901-0995
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,SHOULDERED TITLE COMPONENT PN A4343A MFR SHAFT,SHOULDERED
KEY FEATURES
•
STEP QUANTITY: 4
•
FIRST END DIAMETER: 2.9310 INCHES NOMINAL IN
•
FIRST END SPLINE MAJOR DIAMETER: 2.9310 INCHES NOMINAL IN
•
SECOND END DIAMETER: 2.5600 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 3.500 INCHES NOMINAL IN
•
FIRST END STYLE: SPLINED (STRAIGHT)
•
FIRST END SPLINE LENGTH: 3.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STEP QUANTITY4
FIRST END DIAMETER2.9310 INCHES NOMINAL IN
FIRST END SPLINE MAJOR DIAMETER2.9310 INCHES NOMINAL IN
SECOND END DIAMETER2.5600 INCHES NOMINAL IN
LARGEST STEP DIAMETER3.500 INCHES NOMINAL IN
FIRST END STYLESPLINED (STRAIGHT)
OVERALL LENGTH12.469 INCHES NOMINAL IN
FIRST END SPLINE LENGTH3.500 INCHES NOMINAL IN
FIRST END SPLINE QUANTITY24
END SIMILARITYNOT IDENTICAL
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A4343A?
A4343A is a SHAFT,SHOULDERED.
What is the NSN for A4343A?
A4343A is cataloged in the U.S. Government catalog under NSN 3040-00-901-0995. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.