8754139 — SHAFT,STRAIGHT

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

8754139: SHAFT,STRAIGHT.

The SHAFT,STRAIGHT is a the manufacturer industrial component. Key specifications include material: STEEL, end_similarity: NOT IDENTICAL, overall_length: 5.560 INCHES NOMINAL IN, surface_finish: 32.0 MICROINCHES, first_end_style: PLAIN, second_end_style: TWO FLAT KEYWAYS. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-678-1785, 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

8754139

NSN: 3040-00-678-1785
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

material	STEEL
end_similarity	NOT IDENTICAL
overall_length	5.560 INCHES NOMINAL IN
surface_finish	32.0 MICROINCHES
first_end_style	PLAIN
second_end_style	TWO FLAT KEYWAYS
special_features	TWO NOTCHES 1ST END 0.187 IN. RADIUS IN
first_end_diameter	0.5595 INCHES MINIMUM AND 0.5600 INCHES MAXIMUM IN
second_end_diameter	0.5595 INCHES MINIMUM AND 0.5600 INCHES MAXIMUM IN
external_keyway_length	1.470 INCHES NOMINAL SECOND END IN
end_item_identification	2320-00-763-1092
second_end_keyway_depth	0.060 INCHES NOMINAL IN
NSN	3040-00-678-1785

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 32.0 MICROINCHES

•

FIRST END DIAMETER: 0.5595 INCHES MINIMUM AND 0.5600 INCHES MAXIMUM IN

•

SECOND END DIAMETER: 0.5595 INCHES MINIMUM AND 0.5600 INCHES MAXIMUM IN

•

SECOND END ANGLE BETWEEN KEYWAYS: 180.0 DEGREES NOMINAL

•

FIRST END STYLE: PLAIN

•

SECOND END KEYWAY WIDTH: 0.0900 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-631 FED SPEC SINGLE MATERIAL RESPONSE

TECHNICAL CHARACTERISTICS

SURFACE FINISH	32.0 MICROINCHES
FIRST END DIAMETER	0.5595 INCHES MINIMUM AND 0.5600 INCHES MAXIMUM IN
SECOND END DIAMETER	0.5595 INCHES MINIMUM AND 0.5600 INCHES MAXIMUM IN
SECOND END ANGLE BETWEEN KEYWAYS	180.0 DEGREES NOMINAL
FIRST END STYLE	PLAIN
SECOND END KEYWAY WIDTH	0.0900 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-631 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH	5.560 INCHES NOMINAL IN
SECOND END KEYWAY DEPTH	0.060 INCHES NOMINAL IN
END SIMILARITY	NOT 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 1

2520006781785Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 8754139?

8754139 is a SHAFT,STRAIGHT.

What parts can replace 8754139?

There is 1 known substitute for 8754139: 2520006781785. Substitute compatibility should be verified for your specific system.

What is the NSN for 8754139?

8754139 is cataloged in the U.S. Government catalog under NSN 3040-00-678-1785. This indicates validated use in U.S. government and defense supply chains.

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