W178AS2 — SHAFT,SHOULDERED

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

W178AS2: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, end_similarity: NOT IDENTICAL, overall_length: 4.750 INCHES NOMINAL IN, first_end_style: INDENTED FLAT KEYWAY, second_end_style: INDENTED FLAT KEYWAY, first_end_diameter: 0.7500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-148-7847, 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

W178AS2

NSN: 3040-00-148-7847
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 59180 — CIRCOR PUMPS NORTH AMERICA LLC (USA)

SPECIFICATIONS

material	STEEL
step_quantity	2
end_similarity	NOT IDENTICAL
overall_length	4.750 INCHES NOMINAL IN
first_end_style	INDENTED FLAT KEYWAY
second_end_style	INDENTED FLAT KEYWAY
first_end_diameter	0.7500 INCHES NOMINAL IN
second_end_diameter	1.0000 INCHES NOMINAL IN
largest_step_diameter	1.000 INCHES NOMINAL IN
external_keyway_length	0.750 INCHES NOMINAL FIRST END IN
first_end_keyway_depth	0.125 INCHES NOMINAL IN
first_end_keyway_width	0.1880 INCHES NOMINAL IN
NSN	3040-00-148-7847

COMPONENT DIAGRAM

KEY FEATURES

•

STEP QUANTITY: 2

•

FIRST END DIAMETER: 0.7500 INCHES NOMINAL IN

•

FIRST END DISTANCE FROM KEYWAY CENTER TO END: 0.484 INCHES NOMINAL IN

•

SECOND END DIAMETER: 1.0000 INCHES NOMINAL IN

•

LARGEST STEP DIAMETER: 1.000 INCHES NOMINAL IN

•

SECOND END DISTANCE FROM KEYWAY CENTER TO END: 1.921 INCHES NOMINAL IN

•

FIRST END STYLE: INDENTED FLAT KEYWAY

•

SECOND END KEYWAY WIDTH: 0.2500 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

STEP QUANTITY	2
FIRST END DIAMETER	0.7500 INCHES NOMINAL IN
FIRST END DISTANCE FROM KEYWAY CENTER TO END	0.484 INCHES NOMINAL IN
SECOND END DIAMETER	1.0000 INCHES NOMINAL IN
LARGEST STEP DIAMETER	1.000 INCHES NOMINAL IN
SECOND END DISTANCE FROM KEYWAY CENTER TO END	1.921 INCHES NOMINAL IN
FIRST END STYLE	INDENTED FLAT KEYWAY
SECOND END KEYWAY WIDTH	0.2500 INCHES NOMINAL IN
OVERALL LENGTH	4.750 INCHES NOMINAL IN
FIRST END KEYWAY DEPTH	0.125 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 2

S2419JEReference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

SG2422PC132Same 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 demandDemilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is W178AS2?

W178AS2 is a SHAFT,SHOULDERED.

What parts can replace W178AS2?

There are 2 known substitutes for W178AS2: S2419JE, SG2422PC132. Substitute compatibility should be verified for your specific system.

What is the NSN for W178AS2?

W178AS2 is cataloged in the U.S. Government catalog under NSN 3040-00-148-7847. This indicates validated use in U.S. government and defense supply chains.

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