PartsTable
Technical Data Sheet
SJ3540-94 ✓ 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: COPPER ALLOY OVERALL, bonnet_type: INSIDE SPRING, connection_type: THREADED INTERNAL PIPE FIRST END, connection_style: PLAIN,OPTIONAL END(PIPE) FIRST END, style_designator: ANGLE, thread_direction: RIGHT-HAND SECOND END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-287-3017, 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
SJ3540-94
NSN: 4820-00-287-3017
FSC: 4820
CAGE: 23230 — AMEC FOSTER WHEELER NORTH AMERICA CORP. DBA FOSTER WHEELER (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
bonnet_typeINSIDE SPRING
connection_typeTHREADED INTERNAL PIPE FIRST END
connection_stylePLAIN,OPTIONAL END(PIPE) FIRST END
style_designatorANGLE
thread_directionRIGHT-HAND SECOND END
operating_pressure200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_deviceDISK
nominal_thread_size0.500 INCHES SECOND END IN
maximum_operating_temp425.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
NSN4820-00-287-3017
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: SJ3540-94 · 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
NOMINAL THREAD SIZE: 0.500 INCHES SECOND END IN
BONNET ATTACHMENT METHOD: INTEGRAL
CONNECTION STYLE: PLAIN (PIPE) SECOND END
NOMINAL PIPE SIZE ACCOMMODATED: 0.500 INCHES SECOND END IN
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST END
DISK LOADING METHOD: SPRING
ADJUSTABLE PRESSURE RANGE: +11.0 TO 15.0 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.500 INCHES SECOND END IN
BONNET ATTACHMENT METHODINTEGRAL
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) FIRST END
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES SECOND END IN
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE+11.0 TO 15.0 POUNDS PER SQUARE INCH LBS
VALVE DISCHARGE FLOW RATE86.0 POUNDS PER HOUR LBS
VALVE OPERATION METHODAUTOMATIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
208Interchangeable
interchangeable cross-reference
interchangeable
503-S 33Interchangeable
interchangeable cross-reference
interchangeable
350-RTInterchangeable
interchangeable cross-reference
interchangeable
20679Interchangeable
interchangeable cross-reference
interchangeable
SL4965-94Interchangeable
Same NIIN cross-reference
interchangeable
SJ3540PC94Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SJ3540-94?
SJ3540-94 is a VALVE,SAFETY RELIEF.
What parts can replace SJ3540-94?
There are 8 known substitutes for SJ3540-94: 208, 503-S 33, 350-RT and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SJ3540-94?
SJ3540-94 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-287-3017. This indicates validated use in U.S. government and defense supply chains.
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