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1A390 — IMPELLER,PUMP,CENTRIFUGAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

1A390: IMPELLER,PUMP,CENTRIFUGAL.

The IMPELLER,PUMP,CENTRIFUGAL is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, blade_type: BACKWARD CURVE, hub_length: 2.000 INCHES NOMINAL IN, design_type: SINGLE WIDTH, keyway_type: RECTANGULAR, hub_location: SINGLE INSIDE OFFSET. This part is cataloged in the U.S.

Government catalog under NSN 4320-00-722-9031, 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
1A390
NSN: 4320-00-722-9031
FSC: 4320 — Power and Hand Pumps
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialNICKEL ALLOY
blade_typeBACKWARD CURVE
hub_length2.000 INCHES NOMINAL IN
design_typeSINGLE WIDTH
keyway_typeRECTANGULAR
hub_locationSINGLE INSIDE OFFSET
hub_quantity1
keyway_depth0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
keyway_width0.250 INCHES NOMINAL IN
keyway_length2.000 INCHES NOMINAL IN
overall_width2.313 INCHES NOMINAL IN
blade_quantity6
NSN4320-00-722-9031
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available IMPELLER,PUMP,CENTRIFUGAL TITLE COMPONENT PN 1A390 MFR IMPELLER,PUMP,CENTRIFU
KEY FEATURES
•
KEYWAY TYPE: RECTANGULAR
•
KEYWAY DEPTH: 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
•
HUB BORE DIAMETER: 1.656 INCHES NOMINAL AND 1.625 INCHES MINIMUM AND 1.626 INCHES MAXIMUM IN
•
HUB LENGTH: 2.000 INCHES NOMINAL IN
•
DESIGN TYPE: SINGLE WIDTH
•
OVERALL DIAMETER: 13.250 INCHES NOMINAL IN
•
MOUNTING METHOD: KEY
TECHNICAL CHARACTERISTICS
KEYWAY TYPERECTANGULAR
KEYWAY DEPTH0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
HUB BORE DIAMETER1.656 INCHES NOMINAL AND 1.625 INCHES MINIMUM AND 1.626 INCHES MAXIMUM IN
HUB LENGTH2.000 INCHES NOMINAL IN
DESIGN TYPESINGLE WIDTH
OVERALL DIAMETER13.250 INCHES NOMINAL IN
MOUNTING METHODKEY
OVERALL WIDTH2.313 INCHES NOMINAL IN
KEYWAY QUANTITY1
HUB PROJECTION LENGTH BEYOND WHEEL SIDE0.656 INCHES NOMINAL IN
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 1
ND16550REVAReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1A390?
1A390 is a IMPELLER,PUMP,CENTRIFUGAL.
What parts can replace 1A390?
There is 1 known substitute for 1A390: ND16550REVA. Substitute compatibility should be verified for your specific system.
What is the NSN for 1A390?
1A390 is cataloged in the U.S. Government catalog under NSN 4320-00-722-9031. 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.