1663C90 — SHAFT,SHOULDERED

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

1663C90: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, end_similarity: NOT IDENTICAL, overall_length: 29.000 INCHES NOMINAL IN, surface_finish: 63.0 MICROINCHES, first_end_style: PLAIN, second_end_style: UNTHREADED CROSS DRILLED. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-338-3674, 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

1663C90

NSN: 3040-01-338-3674
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 30828 — KROBACH MFG. CORP. DBA KROBACH MANUFACTURING CORP (USA)

SPECIFICATIONS

material	STEEL
step_quantity	4
end_similarity	NOT IDENTICAL
overall_length	29.000 INCHES NOMINAL IN
surface_finish	63.0 MICROINCHES
first_end_style	PLAIN
second_end_style	UNTHREADED CROSS DRILLED
first_end_diameter	1.2290 INCHES NOMINAL IN
second_end_diameter	1.2505 INCHES MINIMUM AND 1.2515 INCHES MAXIMUM IN
largest_step_diameter	1.250 INCHES MINIMUM AND 1.251 INCHES MAXIMUM IN
second_end_hole_diameter	0.2500 INCHES NOMINAL IN
second_end_distance_from_hole_center_to_end	0.650 INCHES NOMINAL IN
NSN	3040-01-338-3674

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 63.0 MICROINCHES

•

SECOND END HOLE DIAMETER: 0.2500 INCHES NOMINAL IN

•

STEP QUANTITY: 4

•

FIRST END DIAMETER: 1.2290 INCHES NOMINAL IN

•

SECOND END DIAMETER: 1.2505 INCHES MINIMUM AND 1.2515 INCHES MAXIMUM IN

•

LARGEST STEP DIAMETER: 1.250 INCHES MINIMUM AND 1.251 INCHES MAXIMUM IN

•

FIRST END STYLE: PLAIN

TECHNICAL CHARACTERISTICS

SURFACE FINISH	63.0 MICROINCHES
SECOND END HOLE DIAMETER	0.2500 INCHES NOMINAL IN
STEP QUANTITY	4
FIRST END DIAMETER	1.2290 INCHES NOMINAL IN
SECOND END DIAMETER	1.2505 INCHES MINIMUM AND 1.2515 INCHES MAXIMUM IN
LARGEST STEP DIAMETER	1.250 INCHES MINIMUM AND 1.251 INCHES MAXIMUM IN
FIRST END STYLE	PLAIN
OVERALL LENGTH	29.000 INCHES NOMINAL IN
SECOND END DISTANCE FROM HOLE CENTER TO END	0.650 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

1387F91 FIND 4Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 1663C90?

1663C90 is a SHAFT,SHOULDERED.

What parts can replace 1663C90?

There is 1 known substitute for 1663C90: 1387F91 FIND 4. Substitute compatibility should be verified for your specific system.

What is the NSN for 1663C90?

1663C90 is cataloged in the U.S. Government catalog under NSN 3040-01-338-3674. This indicates validated use in U.S. government and defense supply chains.

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1663C90 — SHAFT,SHOULDERED

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