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657D1904 — IMPELLER,PUMP,CENTRIFUGAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

657D1904: IMPELLER,PUMP,CENTRIFUGAL.

The IMPELLER,PUMP,CENTRIFUGAL is a the manufacturer industrial component. Key specifications include material: PLASTIC, hub_length: 9.000 INCHES NOMINAL IN, design_type: SINGLE WIDTH, keyway_type: STRAIGHT, hub_location: CENTERED, keyway_width: 0.501 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4320-01-436-3235, 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
657D1904
NSN: 4320-01-436-3235
FSC: 4320 — Power and Hand Pumps
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialPLASTIC
hub_length9.000 INCHES NOMINAL IN
design_typeSINGLE WIDTH
keyway_typeSTRAIGHT
hub_locationCENTERED
hub_quantity1
keyway_width0.501 INCHES NOMINAL IN
keyway_length9.000 INCHES NOMINAL IN
overall_width12.590 INCHES NOMINAL IN
blade_quantity5
keyway_quantity1
overall_diameter9.000 INCHES NOMINAL IN
NSN4320-01-436-3235
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available IMPELLER,PUMP,CENTRIFUGAL TITLE COMPONENT PN 657D1904 MFR IMPELLER,PUMP,CENTRIFU
KEY FEATURES
•
KEYWAY TYPE: STRAIGHT
•
HUB BORE DIAMETER: 2.482 INCHES NOMINAL IN
•
HUB LENGTH: 9.000 INCHES NOMINAL IN
•
DESIGN TYPE: SINGLE WIDTH
•
OVERALL DIAMETER: 9.000 INCHES NOMINAL IN
•
KEYWAY QUANTITY: 1
•
BLADE QUANTITY: 5
TECHNICAL CHARACTERISTICS
KEYWAY TYPESTRAIGHT
HUB BORE DIAMETER2.482 INCHES NOMINAL IN
HUB LENGTH9.000 INCHES NOMINAL IN
DESIGN TYPESINGLE WIDTH
OVERALL DIAMETER9.000 INCHES NOMINAL IN
OVERALL WIDTH12.590 INCHES NOMINAL IN
KEYWAY QUANTITY1
BLADE QUANTITY5
KEYWAY LENGTH9.000 INCHES NOMINAL IN
HUB QUANTITY1
OTHER ITEMS IN FSC 4320 — Power and Hand Pumps
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4320-00-001-1633 4320-00-001-2628 4320-00-001-2629 4320-00-001-2630 4320-00-001-2631 4320-00-001-2632 4320-00-001-3377 4320-00-001-3384
SUBSTITUTES & CROSS-REFERENCES 3
0657C1904S901AReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
0657D1904S902AReference document
Same NSN cross-reference
Reference document — Secondary reference
0657D1904S901AReference document
Same NSN cross-reference
Reference document — Secondary reference
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 657D1904?
657D1904 is a IMPELLER,PUMP,CENTRIFUGAL.
What parts can replace 657D1904?
There are 3 known substitutes for 657D1904: 0657C1904S901A, 0657D1904S902A, 0657D1904S901A. Substitute compatibility should be verified for your specific system.
What is the NSN for 657D1904?
657D1904 is cataloged in the U.S. Government catalog under NSN 4320-01-436-3235. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.