12349618 — SHAFT,SHOULDERED

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

12349618: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 4140, end_similarity: NOT IDENTICAL, overall_length: 15.380 INCHES NOMINAL IN, surface_finish: 63.0 MICROINCHES, first_end_style: EXTERNAL THREADED, second_end_style: SPLINED (INVOLUTE). This part is cataloged in the U.S.

Government catalog under NSN 3040-01-249-3383, 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

12349618

NSN: 3040-01-249-3383
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

material	STEEL COMP 4130 OR STEEL COMP 4140
step_quantity	5
end_similarity	NOT IDENTICAL
overall_length	15.380 INCHES NOMINAL IN
surface_finish	63.0 MICROINCHES
first_end_style	EXTERNAL THREADED
second_end_style	SPLINED (INVOLUTE)
special_features	FIRST END 3A THREAD A
first_end_diameter	0.6250 INCHES NOMINAL IN
second_end_diameter	0.7360 INCHES NOMINAL IN
largest_step_diameter	0.875 INCHES NOMINAL IN
second_end_spline_length	0.938 INCHES NOMINAL IN
NSN	3040-01-249-3383

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 63.0 MICROINCHES

•

STEP QUANTITY: 5

•

FIRST END DIAMETER: 0.6250 INCHES NOMINAL IN

•

SECOND END DIAMETER: 0.7360 INCHES NOMINAL IN

•

LARGEST STEP DIAMETER: 0.875 INCHES NOMINAL IN

•

SECOND END SPLINE MINOR DIAMETER: 0.5975 INCHES NOMINAL IN

•

FIRST END EXTERNAL THREAD LENGTH: 1.050 INCHES NOMINAL IN

•

FIRST END STYLE: EXTERNAL THREADED

TECHNICAL CHARACTERISTICS

SURFACE FINISH	63.0 MICROINCHES
STEP QUANTITY	5
FIRST END DIAMETER	0.6250 INCHES NOMINAL IN
SECOND END DIAMETER	0.7360 INCHES NOMINAL IN
LARGEST STEP DIAMETER	0.875 INCHES NOMINAL IN
SECOND END SPLINE MINOR DIAMETER	0.5975 INCHES NOMINAL IN
FIRST END EXTERNAL THREAD LENGTH	1.050 INCHES NOMINAL IN
FIRST END STYLE	EXTERNAL THREADED
SECOND END SPLINE MAJOR DIAMETER	0.7360 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A322 ASSN STD ALL MATERIAL RESPONSES OR ASTM A331 ASSN STD ALL MATERIAL RESPONSES

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 1

3040012493383Reference document

Same NSN cross-reference

Reference document — Informative reference only

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 12349618?

12349618 is a SHAFT,SHOULDERED.

What parts can replace 12349618?

There is 1 known substitute for 12349618: 3040012493383. Substitute compatibility should be verified for your specific system.

What is the NSN for 12349618?

12349618 is cataloged in the U.S. Government catalog under NSN 3040-01-249-3383. This indicates validated use in U.S. government and defense supply chains.

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12349618 — SHAFT,SHOULDERED

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