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Technical Data Sheet
L20W ✓ 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,WATER,LIQUID FUEL is a the manufacturer industrial component. Key specifications include end_item_identification: ALDRICH HOT WATER BOILER-BURNER UNIT,SERIES L ASME. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4410-01-187-7138, 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
L20W
NSN: 4410-01-187-7138
FSC: 4410
CAGE: 01021 — ALDRICO, INC. DBA ALDRICH COMPANY (USA)
SPECIFICATIONS
end_item_identificationALDRICH HOT WATER BOILER-BURNER UNIT,SERIES L ASME
general_characteristics_item_descriptionOIL FIRED BOILER UNIT,STANDARD,NET RATING WATER BTU/HR 172; GROSS OUTPUT BTU/HR 198; FIRING RATE 2.0 GPH; 30 PSI WP,ROUND STEEL JACKET,45.875 IN.H,25.000 IN.DIA IN
NSN4410-01-187-7138
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HEATER,WATER,LIQUID FUEL TITLE COMPONENT PN L20W MFR HEATER,WATER,LIQUID FU
KEY FEATURES
GENERAL CHARACTERISTICS ITEM DESCRIPTION: OIL FIRED BOILER UNIT,STANDARD,NET RATING WATER BTU/HR 172; GROSS OUTPUT BTU/HR 198; FIRING RATE 2.0 GPH; 30 PSI WP,ROUND STEEL JACKET,45.875 IN.H,25.000 IN.DIA IN
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONALDRICH HOT WATER BOILER-BURNER UNIT,SERIES L ASME
GENERAL CHARACTERISTICS ITEM DESCRIPTIONOIL FIRED BOILER UNIT,STANDARD,NET RATING WATER BTU/HR 172; GROSS OUTPUT BTU/HR 198; FIRING RATE 2.0 GPH; 30 PSI WP,ROUND STEEL JACKET,45.875 IN.H,25.000 IN.DIA IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
25-1003873-1Interchangeable
interchangeable cross-reference
interchangeable
L20-00-00-26Interchangeable
interchangeable cross-reference
interchangeable
A-A-59400Interchangeable
interchangeable cross-reference
interchangeable
43-775Interchangeable
interchangeable cross-reference
interchangeable
60643Interchangeable
interchangeable cross-reference
interchangeable
0606910Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L20W?
L20W is a HEATER,WATER,LIQUID FUEL.
What parts can replace L20W?
There are 13 known substitutes for L20W: 25-1003873-1, L20-00-00-26, A-A-59400 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for L20W?
L20W is cataloged in the Federal Logistics Information System (FLIS) under NSN 4410-01-187-7138. This indicates validated use in U.S. government and defense supply chains.
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