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Technical Data Sheet
PartsTable / COMPONENT / 20155-56
20155-56 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

THERMAL ELEMENT,TEMPERATURE REGU. Key specifications include end_item_identification: AERCO INTL,INC. TYPE HLK-TA TEMPERATURE REGULATOR, general_characteristics_item_description: 8.0FT.

CAPILLARY,RANGE 50.0-250.0 DEG F,44CC BULB VOLUME,WORKING LOAD 15-20LB,DESIGN LOAD 24LB LBS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-044-1668, 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
20155-56
NSN: 4820-01-044-1668
FSC: 4820
CAGE: 95368 — AERCO INTERNATIONAL, INC. DBA AERCO INTERNATIONAL INC (USA)
SPECIFICATIONS
end_item_identificationAERCO INTL,INC. TYPE HLK-TA TEMPERATURE REGULATOR
general_characteristics_item_description8.0FT. CAPILLARY,RANGE 50.0-250.0 DEG F,44CC BULB VOLUME,WORKING LOAD 15-20LB,DESIGN LOAD 24LB LBS
NSN4820-01-044-1668
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20155-56 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 8.0FT. CAPILLARY,RANGE 50.0-250.0 DEG F,44CC BULB VOLUME,WORKING LOAD 15-20LB,DESIGN LOAD 24LB LBS
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTION8.0FT. CAPILLARY,RANGE 50.0-250.0 DEG F,44CC BULB VOLUME,WORKING LOAD 15-20LB,DESIGN LOAD 24LB LBS
END ITEM IDENTIFICATIONAERCO INTL,INC. TYPE HLK-TA TEMPERATURE REGULATOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
51441Interchangeable
interchangeable cross-reference
interchangeable
51441-1Interchangeable
interchangeable cross-reference
interchangeable
756-6176Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-2692Interchangeable
interchangeable cross-reference
interchangeable
5-1-44Interchangeable
interchangeable cross-reference
interchangeable
816470Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20155-56?
20155-56 is a THERMAL ELEMENT,TEMPERATURE REGU.
What parts can replace 20155-56?
There are 16 known substitutes for 20155-56: 51441, 51441-1, 756-6176 and 13 more. Substitute compatibility should be verified for your specific system.
Is 20155-56 still available?
20155-56 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026