PartsTable
Technical Data Sheet
20256J01S0501 ✓ 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 OVERALL, connection_type: UNTHREADED INTERNAL PIPE ALL ENDS, connection_style: STREAMLINED WITH ONE BRAZING RING ALL ENDS, style_designator: ANGLE, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, flow_control_device: DISK. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-130-8468, 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
20256J01S0501
NSN: 4820-01-130-8468
FSC: 4820
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
connection_styleSTREAMLINED WITH ONE BRAZING RING ALL ENDS
style_designatorANGLE
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
maximum_operating_temp165.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
media_for_which_designedAIR SINGLE RESPONSE
adjustable_pressure_range+501.0 TO 600.0 POUNDS PER SQUARE INCH LBS
nominal_pipe_size_accommodated2.000 INCHES ALL ENDS IN
NSN4820-01-130-8468
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 20256J01S0501 · 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
ADJUSTABLE PRESSURE RANGE: +501.0 TO 600.0 POUNDS PER SQUARE INCH LBS
FLOW CONTROL DEVICE: DISK
CONNECTION STYLE: STREAMLINED WITH ONE BRAZING RING ALL ENDS
VALVE OPERATION METHOD: AUTOMATIC
MEDIA FOR WHICH DESIGNED: AIR SINGLE RESPONSE
CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL: NICKEL ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
ADJUSTABLE PRESSURE RANGE+501.0 TO 600.0 POUNDS PER SQUARE INCH LBS
FLOW CONTROL DEVICEDISK
CONNECTION STYLESTREAMLINED WITH ONE BRAZING RING ALL ENDS
VALVE OPERATION METHODAUTOMATIC
MEDIA FOR WHICH DESIGNEDAIR SINGLE RESPONSE
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALNICKEL ALLOY OVERALL
STYLE DESIGNATORANGLE
NOMINAL PIPE SIZE ACCOMMODATED2.000 INCHES ALL ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
20256Z51MInterchangeable
interchangeable cross-reference
interchangeable
20256Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20256J01S0501?
20256J01S0501 is a VALVE,SAFETY RELIEF.
What parts can replace 20256J01S0501?
There are 2 known substitutes for 20256J01S0501: 20256Z51M, 20256. Substitute compatibility should be verified for your specific system.
What is the NSN for 20256J01S0501?
20256J01S0501 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-130-8468. This indicates validated use in U.S. government and defense supply chains.
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