C-51-12986 — SHAFT,SHOULDERED

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

C-51-12986: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, end_similarity: NOT IDENTICAL, overall_length: 9.030 INCHES NOMINAL IN, surface_finish: 125.0 MICROINCHES, first_end_style: PLAIN, second_end_style: SPLINED (STRAIGHT). This part is cataloged in the U.S.

Government catalog under NSN 3040-01-287-7829, 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

C-51-12986

NSN: 3040-01-287-7829
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 5G804 — ILLINOIS TOOL WORKS INC DBA ILLINOIS TOOL WORKS INC DIV ITW HEARTLAND (USA)

SPECIFICATIONS

material	STEEL
step_quantity	9
end_similarity	NOT IDENTICAL
overall_length	9.030 INCHES NOMINAL IN
surface_finish	125.0 MICROINCHES
first_end_style	PLAIN
second_end_style	SPLINED (STRAIGHT)
first_end_diameter	1.3900 INCHES NOMINAL IN
second_end_diameter	0.9980 INCHES NOMINAL IN
largest_step_diameter	1.500 INCHES NOMINAL IN
second_end_spline_length	2.437 INCHES NOMINAL IN
second_end_spline_quantity	10
NSN	3040-01-287-7829

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 125.0 MICROINCHES

•

STEP QUANTITY: 9

•

FIRST END DIAMETER: 1.3900 INCHES NOMINAL IN

•

SECOND END DIAMETER: 0.9980 INCHES NOMINAL IN

•

LARGEST STEP DIAMETER: 1.500 INCHES NOMINAL IN

•

SECOND END SPLINE MINOR DIAMETER: 0.8390 INCHES NOMINAL IN

•

FIRST END STYLE: PLAIN

•

SECOND END SPLINE MAJOR DIAMETER: 0.9980 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

SURFACE FINISH	125.0 MICROINCHES
STEP QUANTITY	9
FIRST END DIAMETER	1.3900 INCHES NOMINAL IN
SECOND END DIAMETER	0.9980 INCHES NOMINAL IN
LARGEST STEP DIAMETER	1.500 INCHES NOMINAL IN
SECOND END SPLINE MINOR DIAMETER	0.8390 INCHES NOMINAL IN
FIRST END STYLE	PLAIN
SECOND END SPLINE MAJOR DIAMETER	0.9980 INCHES NOMINAL IN
OVERALL LENGTH	9.030 INCHES NOMINAL IN
END SIMILARITY	NOT IDENTICAL

SUBSTITUTES & CROSS-REFERENCES 2

26M01-5801 ITEM 4Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

26M01-5801Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is C-51-12986?

C-51-12986 is a SHAFT,SHOULDERED.

What parts can replace C-51-12986?

There are 2 known substitutes for C-51-12986: 26M01-5801 ITEM 4, 26M01-5801. Substitute compatibility should be verified for your specific system.

What is the NSN for C-51-12986?

C-51-12986 is cataloged in the U.S. Government catalog under NSN 3040-01-287-7829. This indicates validated use in U.S. government and defense supply chains.

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