PartsTable
Technical Data Sheet
20277735 ✓ 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 material: NICKEL ALLOY STEM, bonnet_type: INSIDE SCREW, connection_type: UNTHREADED INTERNAL PIPE ALL ENDS, connection_style: SOCKET WITH BRAZING RING ALL ENDS, style_designator: ANGLE, operating_pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-317-2744, 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
20277735
NSN: 4820-01-317-2744
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY STEM
bonnet_typeINSIDE SCREW
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
connection_styleSOCKET WITH BRAZING RING ALL ENDS
style_designatorANGLE
operating_pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_deviceDISK
maximum_operating_temp180.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
bonnet_attachment_methodTHREADED
media_for_which_designedAIR FIRST RESPONSE
NSN4820-01-317-2744
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 20277735 · 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
MAXIMUM OPERATING TEMP: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF
MEDIA FOR WHICH DESIGNED: WATER, FRESH SECOND RESPONSE
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
STYLE DESIGNATOR: ANGLE
OPERATING PRESSURE: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
DISK LOADING METHOD: SPRING
BONNET ATTACHMENT METHOD: THREADED
NOMINAL PIPE SIZE ACCOMMODATED: 0.750 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
MAXIMUM OPERATING TEMP180.0 FAHRENHEIT SINGLE RESPONSE DEGF
MEDIA FOR WHICH DESIGNEDWATER, FRESH SECOND RESPONSE
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
STYLE DESIGNATORANGLE
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
DISK LOADING METHODSPRING
BONNET ATTACHMENT METHODTHREADED
NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES ALL ENDS IN
MATERIALCOPPER ALLOY BODY
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
1385PL4141 11/2IN 30TO50PSIInterchangeable
interchangeable cross-reference
interchangeable
C3459Interchangeable
interchangeable cross-reference
interchangeable
1384 PL4141 1-1-2IN 30T50PSIInterchangeable
interchangeable cross-reference
interchangeable
1385 3/8 PL4149Interchangeable
interchangeable cross-reference
interchangeable
C3650 1385 3/8 180T300PSIInterchangeable
interchangeable cross-reference
interchangeable
C3650Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20277735?
20277735 is a VALVE,RELIEF,PRESSURE AND TEMPER.
What parts can replace 20277735?
There are 20 known substitutes for 20277735: 1385PL4141 11/2IN 30TO50PSI, C3459, 1384 PL4141 1-1-2IN 30T50PSI and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20277735?
20277735 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-317-2744. This indicates validated use in U.S. government and defense supply chains.
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