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Technical Data Sheet
657D1421 ✓ 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 IMPELLER,PUMP,CENTRIFUGAL is a the manufacturer industrial component. Key specifications include material: STEEL, blade_type: BACKWARD CURVE, hub_length: 0.750 INCHES NOMINAL IN, design_type: SINGLE WIDTH, keyway_type: RECTANGULAR, hub_location: BACK SIDE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-01-067-8123, 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
657D1421
NSN: 4320-01-067-8123
FSC: 4320
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialSTEEL
blade_typeBACKWARD CURVE
hub_length0.750 INCHES NOMINAL IN
design_typeSINGLE WIDTH
keyway_typeRECTANGULAR
hub_locationBACK SIDE
hub_quantity1
keyway_depth0.125 INCHES NOMINAL IN
keyway_width0.250 INCHES NOMINAL IN
keyway_length1.625 INCHES NOMINAL IN
overall_width3.062 INCHES NOMINAL IN
blade_quantity5
NSN4320-01-067-8123
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available IMPELLER,PUMP,CENTRIFUGAL TITLE COMPONENT PN 657D1421 MFR IMPELLER,PUMP,CENTRIFU
KEY FEATURES
KEYWAY DEPTH: 0.125 INCHES NOMINAL IN
MOUNTING METHOD: KEY
BLADE QUANTITY: 5
MATERIAL: STEEL
BLADE TYPE: BACKWARD CURVE
KEYWAY QUANTITY: 1
HUB LENGTH: 0.750 INCHES NOMINAL IN
HUB QUANTITY: 1
TECHNICAL CHARACTERISTICS (FLIS)
KEYWAY DEPTH0.125 INCHES NOMINAL IN
MOUNTING METHODKEY
BLADE QUANTITY5
MATERIALSTEEL
BLADE TYPEBACKWARD CURVE
KEYWAY QUANTITY1
HUB LENGTH0.750 INCHES NOMINAL IN
HUB QUANTITY1
HUB LOCATIONBACK SIDE
DESIGN TYPESINGLE WIDTH
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
N21674PC38Interchangeable
interchangeable cross-reference
interchangeable
N21738PCCD72Interchangeable
interchangeable cross-reference
interchangeable
280-1145P130Interchangeable
interchangeable cross-reference
interchangeable
400-612-101Interchangeable
interchangeable cross-reference
interchangeable
RCR20G393JInterchangeable
interchangeable cross-reference
interchangeable
0XWELD65Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 657D1421?
657D1421 is a IMPELLER,PUMP,CENTRIFUGAL.
What parts can replace 657D1421?
There are 12 known substitutes for 657D1421: N21674PC38, N21738PCCD72, 280-1145P130 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 657D1421?
657D1421 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-01-067-8123. This indicates validated use in U.S. government and defense supply chains.
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