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12321243 — SHAFT,SHOULDERED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

12321243: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, end_similarity: NOT IDENTICAL, overall_length: 4.660 INCHES NOMINAL IN, surface_finish: 63.0 MICROINCHES, first_end_style: CIRCULAR GROOVED, second_end_style: CIRCULAR GROOVED AND EXTERNALLY THREADED. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-182-4353, 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
12321243
NSN: 3040-01-182-4353
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
step_quantity5
end_similarityNOT IDENTICAL
overall_length4.660 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES
first_end_styleCIRCULAR GROOVED
second_end_styleCIRCULAR GROOVED AND EXTERNALLY THREADED
special_featuresCONTAINS TWO 0.270 IN. LG. SLOTS IN
first_end_diameter0.5000 INCHES NOMINAL IN
second_end_diameter0.1900 INCHES NOMINAL IN
largest_step_diameter0.500 INCHES NOMINAL IN
first_end_groove_width0.2501 INCHES NOMINAL IN
NSN3040-01-182-4353
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,SHOULDERED TITLE COMPONENT PN 12321243 MFR SHAFT,SHOULDERED
KEY FEATURES
•
SURFACE FINISH: 63.0 MICROINCHES
•
SECOND END EXTERNAL THREAD LENGTH: 0.320 INCHES NOMINAL IN
•
STEP QUANTITY: 5
•
FIRST END DIAMETER: 0.5000 INCHES NOMINAL IN
•
SECOND END DIAMETER: 0.1900 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 0.500 INCHES NOMINAL IN
•
FIRST END STYLE: CIRCULAR GROOVED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582,TYPE 416 ASSN STD SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES
SECOND END EXTERNAL THREAD LENGTH0.320 INCHES NOMINAL IN
STEP QUANTITY5
FIRST END DIAMETER0.5000 INCHES NOMINAL IN
SECOND END DIAMETER0.1900 INCHES NOMINAL IN
LARGEST STEP DIAMETER0.500 INCHES NOMINAL IN
FIRST END STYLECIRCULAR GROOVED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582,TYPE 416 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH4.660 INCHES NOMINAL IN
SECOND END GROOVE DIAMETER0.1250 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

No substitute or cross-reference records for this part.

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 12321243?
12321243 is a SHAFT,SHOULDERED.
What is the NSN for 12321243?
12321243 is cataloged in the U.S. Government catalog under NSN 3040-01-182-4353. 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.