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Technical Data Sheet
PartsTable / COMPONENT / 816556-041
816556-041 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
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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: COPPER ALLOY, blade_type: BACKWARD CURVE, hub_length: 0.250 INCHES NOMINAL IN, design_type: SINGLE WIDTH, keyway_type: RECTANGULAR, hub_location: BACK SIDE AND FRONT 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 4320-00-601-9890, 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
816556-041
NSN: 4320-00-601-9890
FSC: 4320
CAGE: 52694 — ARMSTRONG PUMPS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY
blade_typeBACKWARD CURVE
hub_length0.250 INCHES NOMINAL IN
design_typeSINGLE WIDTH
keyway_typeRECTANGULAR
hub_locationBACK SIDE AND FRONT SIDE
hub_quantity2
keyway_depth0.063 INCHES NOMINAL IN
keyway_width0.125 INCHES NOMINAL IN
keyway_length0.813 INCHES NOMINAL IN
overall_width1.688 INCHES NOMINAL IN
blade_quantity8
NSN4320-00-601-9890
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available IMPELLER,PUMP,CENTRIFUGAL TITLE COMPONENT PN 816556-041 MFR IMPELLER,PUMP,CENTRIFU
KEY FEATURES
•
HUB LOCATION: BACK SIDE AND FRONT SIDE
•
MOUNTING METHOD: KEY
•
KEYWAY DEPTH: 0.063 INCHES NOMINAL IN
•
KEYWAY QUANTITY: 1
•
HUB LENGTH: 0.250 INCHES NOMINAL IN
•
KEYWAY WIDTH: 0.125 INCHES NOMINAL IN
•
OVERALL DIAMETER: 3.313 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HUB LOCATIONBACK SIDE AND FRONT SIDE
MOUNTING METHODKEY
KEYWAY DEPTH0.063 INCHES NOMINAL IN
KEYWAY QUANTITY1
HUB LENGTH0.250 INCHES NOMINAL IN
KEYWAY WIDTH0.125 INCHES NOMINAL IN
SPECIAL FEATURESHUB FOR SHAFT RECESSED BOTH END 7/16 IN. DP,SHAFT DIA IS 3/8 IN. IN
OVERALL DIAMETER3.313 INCHES NOMINAL IN
OVERALL WIDTH1.688 INCHES NOMINAL IN
HUB BORE DIAMETER1.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
15233Interchangeable
interchangeable cross-reference
interchangeable
C54219Interchangeable
interchangeable cross-reference
interchangeable
08149Interchangeable
interchangeable cross-reference
interchangeable
118436Interchangeable
Same NIIN cross-reference
interchangeable
16556-41Interchangeable
Same NIIN cross-reference
interchangeable
D107PC12Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 816556-041?
816556-041 is a IMPELLER,PUMP,CENTRIFUGAL.
What parts can replace 816556-041?
There are 7 known substitutes for 816556-041: 15233, C54219, 08149 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 816556-041?
816556-041 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-601-9890. 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