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Technical Data Sheet
PartsTable / COMPONENT / 40XL
40XL ✓ 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

VALVE,RELIEF,PRESSURE AND TEMPER. Key specifications include special_features: CAP,FUEL TANK, locking_device_type: INTEGRAL SELF LOCK, pressure_relief_method: MANUAL, end_item_identification: KOMATSU DRESSER CO MOTORIZED ROLLER MACHINE MODEL 708, system_for_which_designed: PRESSURIZED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-541-8839, 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
40XL
NSN: 4820-00-541-8839
FSC: 4820
CAGE: 79227 — WATTS REGULATOR COMPANY (USA)
SPECIFICATIONS
special_featuresCAP,FUEL TANK
locking_device_typeINTEGRAL SELF LOCK
pressure_relief_methodMANUAL
end_item_identificationKOMATSU DRESSER CO MOTORIZED ROLLER MACHINE MODEL 708
system_for_which_designedPRESSURIZED
NSN4820-00-541-8839
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40XL · 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
•
SECOND END THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: COPPER ALLOY FLOW CONTROL DEVICE
•
FLOW CONTROL DEVICE: POPPET
•
SECOND END CONNECTION TYPE: THREADED EXTERNAL PIPE
•
BULB LENGTH: 10.000 INCHES NOMINAL IN
•
BODY STYLE: ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
•
OPENING PRESSURE SETTING: ERR-060
TECHNICAL CHARACTERISTICS (FLIS)
SECOND END THREAD DIRECTIONRIGHT-HAND
MATERIALCOPPER ALLOY FLOW CONTROL DEVICE
FLOW CONTROL DEVICEPOPPET
SECOND END CONNECTION TYPETHREADED EXTERNAL PIPE
BULB LENGTH10.000 INCHES NOMINAL IN
BODY STYLEANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
OPENING PRESSURE SETTINGERR-060
MATERIALCOPPER ALLOY BODY
FIRST END STYLE DESIGNATORPLAIN
END CONNECTION QUANTITY2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
40XLInterchangeable
interchangeable cross-reference
interchangeable
40XL-3/4IN.90PSIInterchangeable
interchangeable cross-reference
interchangeable
40XL-3/4IN.100PSIInterchangeable
interchangeable cross-reference
interchangeable
40XL-8 PSIInterchangeable
interchangeable cross-reference
interchangeable
M8Interchangeable
interchangeable cross-reference
interchangeable
40XL5M8 3-4-125Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40XL?
40XL is a VALVE,RELIEF,PRESSURE AND TEMPER.
What parts can replace 40XL?
There are 16 known substitutes for 40XL: 40XL, 40XL-3/4IN.90PSI, 40XL-3/4IN.100PSI and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40XL?
40XL is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-541-8839. 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