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D178 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SLEEVE,SHAFT,PUMP is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, corner_shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER, flange_width: 0.6875 INCHES NOMINAL IN, overall_length: 4.6875 INCHES NOMINAL IN, keyway_dimension: 0.0980 INCHES NOMINAL INTERNAL KEYWAY DEPTH IN, special_features: FLANGED END COUNTERBORED 1.001 IN. DIA,1.000 IN.

DEEP IN. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-620-4754, 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
D178
NSN: 4320-00-620-4754
FSC: 4320
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
corner_shapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
flange_width0.6875 INCHES NOMINAL IN
overall_length4.6875 INCHES NOMINAL IN
keyway_dimension0.0980 INCHES NOMINAL INTERNAL KEYWAY DEPTH IN
special_featuresFLANGED END COUNTERBORED 1.001 IN. DIA,1.000 IN. DEEP IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
features_providedCASEHARDENED
body_inside_diameter0.8750 INCHES NOMINAL IN
body_outside_diameter1.2450 INCHES NOMINAL IN
flange_outside_diameter1.4375 INCHES NOMINAL IN
material_document_and_classificationQQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4320-00-620-4754
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SLEEVE,SHAFT,PUMP TITLE COMPONENT PN D178 MFR SLEEVE,SHAFT,PUMP
KEY FEATURES
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BODY OUTSIDE DIAMETER: 1.2450 INCHES NOMINAL IN
•
FLANGE WIDTH: 0.6875 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.8750 INCHES NOMINAL IN
•
FLANGE OUTSIDE DIAMETER: 1.4375 INCHES NOMINAL IN
•
CORNER SHAPE: SQUARE OUTSIDE LEFT CORNER
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH4.6875 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.2450 INCHES NOMINAL IN
FLANGE WIDTH0.6875 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.8750 INCHES NOMINAL IN
FLANGE OUTSIDE DIAMETER1.4375 INCHES NOMINAL IN
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
FEATURES PROVIDEDCASEHARDENED
MATERIALNICKEL ALLOY OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
659Z0133Interchangeable
interchangeable cross-reference
interchangeable
R594PC34Interchangeable
interchangeable cross-reference
interchangeable
H3314961Interchangeable
interchangeable cross-reference
interchangeable
H4320-620-4754Interchangeable
Same NIIN cross-reference
interchangeable
R594PC35Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D178?
D178 is a SLEEVE,SHAFT,PUMP.
What parts can replace D178?
There are 5 known substitutes for D178: 659Z0133, R594PC34, H3314961 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D178?
D178 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-620-4754. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026