PartsTable
Technical Data Sheet
R557-49963 ✓ 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,ANGLE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY BODY, bonnet_type: OUTSIDE SCREW-YOKE, flange_shape: ROUND WITH HOLES SECOND END, connection_type: FLANGE SECOND END, style_designator: ANGLE FLANGED ENDS, nominal_thickness: 0.875 INCHES SECOND END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-601-0972, 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
R557-49963
NSN: 4820-00-601-0972
FSC: 4820
CAGE: 16497 — DRESSER, INC. DBA DRESSER EQUIPMENT GROUP DIV INDUSTRIAL VALVE OPERATIONS, DRESSE (USA)
SPECIFICATIONS
materialNICKEL ALLOY BODY
bonnet_typeOUTSIDE SCREW-YOKE
flange_shapeROUND WITH HOLES SECOND END
connection_typeFLANGE SECOND END
style_designatorANGLE FLANGED ENDS
nominal_thickness0.875 INCHES SECOND END IN
bolt_hole_quantity4 FIRST END
flange_face_designPLAIN SECOND END
operating_pressure600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
valve_operation_methodMANUAL
bonnet_attachment_methodBOLTED
NSN4820-00-601-0972
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: R557-49963 · 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
FLANGE FACE DESIGN: PLAIN SECOND END
STYLE DESIGNATOR: ANGLE FLANGED ENDS
BOLT HOLE NOMINAL DIAMETER: 0.812 INCHES FIRST END IN
MATERIAL: STEEL CORROSION RESISTING FLOW CONTROL DEVICE
NOMINAL OUTSIDE DIAMETER: 6.125 INCHES FIRST END IN
BOLT HOLE QUANTITY: 4 FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE FACE DESIGNPLAIN SECOND END
STYLE DESIGNATORANGLE FLANGED ENDS
FLANGE FACE DESIGNRAISED STRAIGHT FIRST END
BOLT HOLE NOMINAL DIAMETER0.812 INCHES FIRST END IN
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIALNICKEL ALLOY SEAT
NOMINAL OUTSIDE DIAMETER6.125 INCHES FIRST END IN
BOLT HOLE QUANTITY4 FIRST END
BOLT CIRCLE NOMINAL DIAMETER4.500 INCHES FIRST END IN
BOLT HOLE QUANTITY4 SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
8021713 1 1/2INInterchangeable
interchangeable cross-reference
interchangeable
N812Interchangeable
interchangeable cross-reference
interchangeable
B0-21735Interchangeable
interchangeable cross-reference
interchangeable
12G8-F22Interchangeable
interchangeable cross-reference
interchangeable
808-90A/808-1500REV0/882010235Interchangeable
interchangeable cross-reference
interchangeable
3292M 1.50 IN.Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R557-49963?
R557-49963 is a VALVE,ANGLE.
What parts can replace R557-49963?
There are 18 known substitutes for R557-49963: 8021713 1 1/2IN, N812, B0-21735 and 15 more. Substitute compatibility should be verified for your specific system.
Is R557-49963 still available?
R557-49963 is currently cancelled.
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