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PartsTable / COMPONENT / 20263U51SS
20263U51SS ✓ 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

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: STEEL CORROSION RESISTING STEM, valve_size: 0.500 INCHES IN, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, style_designator: ANGLE FLANGED ENDS, nominal_thickness: 0.438 INCHES ALL ENDS IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-263-0027, 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
20263U51SS
NSN: 4820-01-263-0027
FSC: 4820
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING STEM
valve_size0.500 INCHES IN
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
style_designatorANGLE FLANGED ENDS
nominal_thickness0.438 INCHES ALL ENDS IN
bolt_hole_quantity4 ALL ENDS
flange_face_designRAISED STRAIGHT ALL ENDS
operating_pressure275.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
maximum_operating_temp450.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
NSN4820-01-263-0027
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20263U51SS · 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
•
BOLT HOLE NOMINAL DIAMETER: 0.625 INCHES ALL ENDS IN
•
RAISED FACE NOMINAL DIAMETER: 1.375 INCHES ALL ENDS IN
•
MATERIAL: STEEL CORROSION RESISTING FLOW CONTROL DEVICE
•
VALVE OPERATION METHOD: AUTOMATIC
•
STYLE DESIGNATOR: ANGLE FLANGED ENDS
•
RAISED FACE NOMINAL HEIGHT: 0.062 INCHES ALL ENDS IN
•
OPERATING PRESSURE: 275.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
FLANGE FACE DESIGN: RAISED STRAIGHT ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
BOLT HOLE NOMINAL DIAMETER0.625 INCHES ALL ENDS IN
RAISED FACE NOMINAL DIAMETER1.375 INCHES ALL ENDS IN
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORANGLE FLANGED ENDS
RAISED FACE NOMINAL HEIGHT0.062 INCHES ALL ENDS IN
OPERATING PRESSURE275.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
FLANGE FACE DESIGNRAISED STRAIGHT ALL ENDS
MAXIMUM OPERATING TEMP450.0 FAHRENHEIT SINGLE RESPONSE DEGF
BOLT HOLE QUANTITY4 ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
20263Interchangeable
interchangeable cross-reference
interchangeable
26-190-16SInterchangeable
interchangeable cross-reference
interchangeable
26-190-16Interchangeable
interchangeable cross-reference
interchangeable
1-910072-001Interchangeable
interchangeable cross-reference
interchangeable
2026301S0015Interchangeable
interchangeable cross-reference
interchangeable
20263B51SSInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20263U51SS?
20263U51SS is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 20263U51SS?
There are 15 known substitutes for 20263U51SS: 20263, 26-190-16S, 26-190-16 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20263U51SS?
20263U51SS is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-263-0027. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026