PartsTable
Technical Data Sheet
20274 ITEM 20274E51M ✓ 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 BODY, connection_type: UNTHREADED INTERNAL TUBE ALL ENDS, connection_style: REDUCED SOCKET ONE BRAZING RING (TUBE) ALL ENDS, style_designator: ANGLE, disk_loading_method: SPRING, 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 4820-01-318-2835, 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
20274 ITEM 20274E51M
NSN: 4820-01-318-2835
FSC: 4820
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
connection_styleREDUCED SOCKET ONE BRAZING RING (TUBE) ALL ENDS
style_designatorANGLE
disk_loading_methodSPRING
flow_control_deviceDISK
valve_operation_methodAUTOMATIC
adjustable_pressure_range+25.0 TO 29.0 POUNDS PER SQUARE INCH LBS
nominal_outside_diameter_tube_accommodated0.500 INCHES ALL ENDS IN
NSN4820-01-318-2835
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 20274 ITEM 20274E51M · 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 OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
DISK LOADING METHOD: SPRING
CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDS
MATERIAL: COPPER ALLOY BODY
VALVE OPERATION METHOD: AUTOMATIC
ADJUSTABLE PRESSURE RANGE: +25.0 TO 29.0 POUNDS PER SQUARE INCH LBS
STYLE DESIGNATOR: ANGLE
FLOW CONTROL DEVICE: DISK
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDS IN
DISK LOADING METHODSPRING
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
MATERIALCOPPER ALLOY BODY
VALVE OPERATION METHODAUTOMATIC
ADJUSTABLE PRESSURE RANGE+25.0 TO 29.0 POUNDS PER SQUARE INCH LBS
STYLE DESIGNATORANGLE
FLOW CONTROL DEVICEDISK
CONNECTION STYLEREDUCED SOCKET ONE BRAZING RING (TUBE) ALL ENDS
MATERIALNICKEL ALLOY STEM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
160-2027-04-01-00Interchangeable
interchangeable cross-reference
interchangeable
1JA2597-22Interchangeable
interchangeable cross-reference
interchangeable
532-D-1Interchangeable
interchangeable cross-reference
interchangeable
2-055-024-375Interchangeable
interchangeable cross-reference
interchangeable
30-20080Interchangeable
interchangeable cross-reference
interchangeable
H2HC-DM7044-HW1-50Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20274 ITEM 20274E51M?
20274 ITEM 20274E51M is a VALVE,SAFETY RELIEF.
What parts can replace 20274 ITEM 20274E51M?
There are 22 known substitutes for 20274 ITEM 20274E51M: 160-2027-04-01-00, 1JA2597-22, 532-D-1 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20274 ITEM 20274E51M?
20274 ITEM 20274E51M is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-318-2835. This indicates validated use in U.S. government and defense supply chains.
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