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Technical Data Sheet
U4S ✓ 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 HEATER,FLUID,INDUSTRIAL is a the manufacturer industrial component. Key specifications include material: STEEL SHELL, tube_quantity: 14, connection_type: THREADED INTERNAL PIPE CONDENSATE RETURN, style_designator: PLAIN U-TUBE, heat_transfer_method: INDIRECT, tube_attachment_method: EXPANDED BOTH ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4420-00-360-2459, 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
U4S
NSN: 4420-00-360-2459
FSC: 4420
CAGE: 59015 — TACO INC. DIV HEAT TRANSFER PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialSTEEL SHELL
tube_quantity14
connection_typeTHREADED INTERNAL PIPE CONDENSATE RETURN
style_designatorPLAIN U-TUBE
heat_transfer_methodINDIRECT
tube_attachment_methodEXPANDED BOTH ENDS
tubing_outside_diameter0.625 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
maximum_steam_working_pressureERR-060
effective_heat_transfer_surface_area9.2 SQUARE FEET
NSN4420-00-360-2459
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HEATER,FLUID,INDUSTRIAL TITLE COMPONENT PN U4S MFR HEATER,FLUID,INDUSTRIA
KEY FEATURES
CONNECTION TYPE: THREADED INTERNAL PIPE CONDENSATE RETURN
TUBE QUANTITY: 14
HEAT TRANSFER METHOD: INDIRECT
MATERIAL: STEEL SHELL
EFFECTIVE HEAT TRANSFER SURFACE AREA: 9.2 SQUARE FEET
STYLE DESIGNATOR: PLAIN U-TUBE
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED INTERNAL PIPE CONDENSATE RETURN
TUBE QUANTITY14
CONNECTION TYPETHREADED INTERNAL PIPE STEAM INLET
HEAT TRANSFER METHODINDIRECT
MATERIALSTEEL SHELL
MATERIALSTEEL TUBE SHEET
EFFECTIVE HEAT TRANSFER SURFACE AREA9.2 SQUARE FEET
STYLE DESIGNATORPLAIN U-TUBE
TUBING OUTSIDE DIAMETER0.625 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
MATERIALSTEEL TUBES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
A-10Interchangeable
interchangeable cross-reference
interchangeable
SL-41Interchangeable
interchangeable cross-reference
interchangeable
32.898-1Interchangeable
interchangeable cross-reference
interchangeable
D162264-4Interchangeable
interchangeable cross-reference
interchangeable
4300107-001Interchangeable
interchangeable cross-reference
interchangeable
U4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is U4S?
U4S is a HEATER,FLUID,INDUSTRIAL.
What parts can replace U4S?
There are 11 known substitutes for U4S: A-10, SL-41, 32.898-1 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for U4S?
U4S is cataloged in the Federal Logistics Information System (FLIS) under NSN 4420-00-360-2459. This indicates validated use in U.S. government and defense supply chains.
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