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Technical Data Sheet
U537804 ✓ 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

VALVE,MODULATING,PUMP RESERVOIR. Key specifications include end_item_identification: PUMP P/NUA534121-12 ACFT F/TF15A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 1660-01-055-9879, 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
U537804
NSN: 1660-01-055-9879
FSC: 1660
CAGE: 78943 — TRIUMPH THERMAL SYSTEMS, LLC (USA)
SPECIFICATIONS
end_item_identificationPUMP P/NUA534121-12 ACFT F/TF15A
NSN1660-01-055-9879
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,MODULATING,PUMP RESERVOIR TITLE COMPONENT PN U537804 MFR VALVE,MODULATING,PUMP
KEY FEATURES
GENERAL CHARACTERISTICS ITEM DESCRIPTION: CRES 30303 PER QQ-S-764 CL 303,303SE AND 303 PLUS X,FINISH PASSIVATE PER UAP SPEC PS-363,1.476 IN. LG REF,0.5935 IN. MAX 0.5930 IN. MIN DIA,1 HOLE ONE WALL ONLY 0.125 IN. DIA THRU,4 GROOVES 0.569 IN. DIA SPACED 0.062 IN.,SMALL END TAPERED FROM 0.4320 IN. T0 0.2380 IN. DIA IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCRES 30303 PER QQ-S-764 CL 303,303SE AND 303 PLUS X,FINISH PASSIVATE PER UAP SPEC PS-363,1.476 IN. LG REF,0.5935 IN. MAX 0.5930 IN. MIN DIA,1 HOLE ONE WALL ONLY 0.125 IN. DIA THRU,4 GROOVES 0.569 IN. DIA SPACED 0.062 IN.,SMALL END TAPERED FROM 0.4320 IN. T0 0.2380 IN. DIA IN
END ITEM IDENTIFICATIONPUMP P/NUA534121-12 ACFT F/TF15A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
535670Interchangeable
interchangeable cross-reference
interchangeable
534769Interchangeable
interchangeable cross-reference
interchangeable
293273Interchangeable
interchangeable cross-reference
interchangeable
EV5302Interchangeable
interchangeable cross-reference
interchangeable
537804Interchangeable
interchangeable cross-reference
interchangeable
2 1/2 4-OHInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is U537804?
U537804 is a VALVE,MODULATING,PUMP RESERVOIR.
What parts can replace U537804?
There are 7 known substitutes for U537804: 535670, 534769, 293273 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for U537804?
U537804 is cataloged in the Federal Logistics Information System (FLIS) under NSN 1660-01-055-9879. This indicates validated use in U.S. government and defense supply chains.
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