PartsTable
Technical Data Sheet
20391-01-E-3150 ✓ 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

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY STEM, connection_type: UNTHREADED INTERNAL PIPE ALL ENDS, connection_style: SOCKET WITH BRAZING RING ALL ENDS, style_designator: ANGLE, operating_pressure: 3450.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, disk_loading_method: SPRING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-442-7779, 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
20391-01-E-3150
NSN: 4820-01-442-7779
FSC: 4820
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
materialNICKEL ALLOY STEM
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
connection_styleSOCKET WITH BRAZING RING ALL ENDS
style_designatorANGLE
operating_pressure3450.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_deviceDISK
maximum_operating_temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
end_item_identificationWASP CLASS LHD
opening_pressure_setting3150.0 POUNDS PER SQUARE INCH LBS
nominal_pipe_size_accommodated0.250 INCHES ALL ENDS IN
NSN4820-01-442-7779
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 20391-01-E-3150 · 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
VALVE OPERATION METHOD: AUTOMATIC
MATERIAL: NICKEL ALLOY STEM
CONNECTION STYLE: SOCKET WITH BRAZING RING ALL ENDS
MAXIMUM OPERATING TEMP: 150.0 FAHRENHEIT SINGLE RESPONSE DEGF
FLOW CONTROL DEVICE: DISK
OPERATING PRESSURE: 3450.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B164 ASSN STD SINGLE MATERIAL RESPONSE STEM
TECHNICAL CHARACTERISTICS (FLIS)
VALVE OPERATION METHODAUTOMATIC
MATERIALNICKEL ALLOY STEM
CONNECTION STYLESOCKET WITH BRAZING RING ALL ENDS
MATERIALNICKEL ALLOY BODY
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SINGLE RESPONSE DEGF
FLOW CONTROL DEVICEDISK
OPERATING PRESSURE3450.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B164 ASSN STD SINGLE MATERIAL RESPONSE STEM
OPENING PRESSURE SETTING3150.0 POUNDS PER SQUARE INCH LBS
STYLE DESIGNATORANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
20391Interchangeable
interchangeable cross-reference
interchangeable
530189-1Interchangeable
interchangeable cross-reference
interchangeable
DIC2039-1Interchangeable
interchangeable cross-reference
interchangeable
H12SSInterchangeable
interchangeable cross-reference
interchangeable
MS35842-11Interchangeable
interchangeable cross-reference
interchangeable
0921911-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20391-01-E-3150?
20391-01-E-3150 is a VALVE,SAFETY RELIEF.
What parts can replace 20391-01-E-3150?
There are 10 known substitutes for 20391-01-E-3150: 20391, 530189-1, DIC2039-1 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20391-01-E-3150?
20391-01-E-3150 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-442-7779. This indicates validated use in U.S. government and defense supply chains.
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