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Technical Data Sheet
PartsTable / COMPONENT / STB4A2A1-E19
STB4A2A1-E19 ✓ 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 overall_height: 1.090 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN, overall_diameter: 3.090 INCHES MINIMUM AND 4.010 INCHES MAXIMUM IN, special_features: NHA PROCESS PANEL ASSEMBLY, end_item_identification: PWEDG FOR NAVAL SURFACE SHIPS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4410-01-478-5229, 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
STB4A2A1-E19
NSN: 4410-01-478-5229
FSC: 4410
CAGE: 79221 — WATLOW ELECTRIC MANUFACTURING CO DBA WATLOW (USA)
SPECIFICATIONS
overall_height1.090 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
overall_diameter3.090 INCHES MINIMUM AND 4.010 INCHES MAXIMUM IN
special_featuresNHA PROCESS PANEL ASSEMBLY
end_item_identificationPWEDG FOR NAVAL SURFACE SHIPS
NSN4410-01-478-5229
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available IMPELLER,PUMP,CENTRIFUGAL TITLE COMPONENT PN STB4A2A1-E19 MFR IMPELLER,PUMP,CENTRIFU
KEY FEATURES
•
OVERALL DIAMETER: 3.090 INCHES MINIMUM AND 4.010 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER3.090 INCHES MINIMUM AND 4.010 INCHES MAXIMUM IN
OVERALL HEIGHT1.090 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONPWEDG FOR NAVAL SURFACE SHIPS
SPECIAL FEATURESNHA PROCESS PANEL ASSEMBLY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
0272Interchangeable
interchangeable cross-reference
interchangeable
0031Interchangeable
interchangeable cross-reference
interchangeable
04-8550Interchangeable
interchangeable cross-reference
interchangeable
PC2Interchangeable
interchangeable cross-reference
interchangeable
0272-475/.22Interchangeable
interchangeable cross-reference
interchangeable
75Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is STB4A2A1-E19?
STB4A2A1-E19 is a IMPELLER,PUMP,CENTRIFUGAL.
What parts can replace STB4A2A1-E19?
There are 6 known substitutes for STB4A2A1-E19: 0272, 0031, 04-8550 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for STB4A2A1-E19?
STB4A2A1-E19 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4410-01-478-5229. 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