PartsTable
Technical Data Sheet
20274S51M ✓ 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 TUBE ALL ENDS, connection_style: SOCKET WITH BRAZING RING (TUBE) ALL ENDS, style_designator: ANGLE, operating_pressure: 210.0 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 4820-01-052-2450, 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
20274S51M
NSN: 4820-01-052-2450
FSC: 4820
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
materialNICKEL ALLOY STEM
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
connection_styleSOCKET WITH BRAZING RING (TUBE) ALL ENDS
style_designatorANGLE
operating_pressure210.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_deviceDISK
valve_operation_methodAUTOMATIC
end_item_identificationSHIP,OHIO CLASS SSN(TRIDENT)
adjustable_pressure_range+181.0 TO 210.0 POUNDS PER SQUARE INCH LBS
furnished_items_and_quantity1 PLUGGED DRAIN
material_document_and_classificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM
NSN4820-01-052-2450
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 20274S51M · 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
FLOW CONTROL DEVICE: DISK
STYLE DESIGNATOR: ANGLE
FURNISHED ITEMS AND QUANTITY: 1 PLUGGED DRAIN
OPERATING PRESSURE: 210.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL: COPPER ALLOY BODY
DISK LOADING METHOD: SPRING
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.313 INCHES ALL ENDS IN
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
TECHNICAL CHARACTERISTICS (FLIS)
FLOW CONTROL DEVICEDISK
STYLE DESIGNATORANGLE
FURNISHED ITEMS AND QUANTITY1 PLUGGED DRAIN
OPERATING PRESSURE210.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALCOPPER ALLOY BODY
DISK LOADING METHODSPRING
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.313 INCHES ALL ENDS IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
VALVE OPERATION METHODAUTOMATIC
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
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 20274S51M?
20274S51M is a VALVE,SAFETY RELIEF.
What parts can replace 20274S51M?
There are 21 known substitutes for 20274S51M: 160-2027-04-01-00, 1JA2597-22, 532-D-1 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20274S51M?
20274S51M is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-052-2450. This indicates validated use in U.S. government and defense supply chains.
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