7974519 — SHAFT,SHOULDERED

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

7974519: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140, end_similarity: NOT IDENTICAL, overall_length: 18.437 INCHES NOMINAL IN, surface_finish: 16.0 MICROINCHES, first_end_style: PLAIN, second_end_style: FLAT KEYWAYS AND INTERNALLY THREADED. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-506-8539, 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

7974519

NSN: 3040-00-506-8539
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

material	STEEL COMP 4140
step_quantity	5
end_similarity	NOT IDENTICAL
overall_length	18.437 INCHES NOMINAL IN
surface_finish	16.0 MICROINCHES
first_end_style	PLAIN
second_end_style	FLAT KEYWAYS AND INTERNALLY THREADED
special_features	SECOND END INT THD HOLE IS FIRST TAPPED 1.500 IN. DP,0.453 IN. DIA IN
first_end_diameter	1.7719 INCHES NOMINAL IN
second_end_diameter	1.2495 INCHES NOMINAL IN
largest_step_diameter	2.241 INCHES NOMINAL IN
external_keyway_length	1.430 INCHES NOMINAL SECOND END IN
NSN	3040-00-506-8539

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 16.0 MICROINCHES

•

STEP QUANTITY: 5

•

FIRST END DIAMETER: 1.7719 INCHES NOMINAL IN

•

SECOND END DIAMETER: 1.2495 INCHES NOMINAL IN

•

LARGEST STEP DIAMETER: 2.241 INCHES NOMINAL IN

•

FIRST END STYLE: PLAIN

•

SECOND END KEYWAY WIDTH: 0.3125 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE

TECHNICAL CHARACTERISTICS

SURFACE FINISH	16.0 MICROINCHES
STEP QUANTITY	5
FIRST END DIAMETER	1.7719 INCHES NOMINAL IN
SECOND END DIAMETER	1.2495 INCHES NOMINAL IN
LARGEST STEP DIAMETER	2.241 INCHES NOMINAL IN
FIRST END STYLE	PLAIN
SECOND END KEYWAY WIDTH	0.3125 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH	18.437 INCHES NOMINAL IN
SECOND END KEYWAY DEPTH	0.177 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 1

M3001780Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 7974519?

7974519 is a SHAFT,SHOULDERED.

What parts can replace 7974519?

There is 1 known substitute for 7974519: M3001780. Substitute compatibility should be verified for your specific system.

What is the NSN for 7974519?

7974519 is cataloged in the U.S. Government catalog under NSN 3040-00-506-8539. This indicates validated use in U.S. government and defense supply chains.

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7974519 — SHAFT,SHOULDERED

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