PartsTable
Technical Data Sheet
98731-2 ✓ 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 HOUSING ASSY,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, bonnet_type: INSIDE SCREW, connection_style: PLAIN,OPTIONAL END(PIPE) ALL ENDS, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND ALL ENDS, features_provided: BONNET PACKING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-142-2837, 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
98731-2
NSN: 4820-00-142-2837
FSC: 4820
CAGE: 63220 — FLOWSERVE INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
bonnet_typeINSIDE SCREW
connection_stylePLAIN,OPTIONAL END(PIPE) ALL ENDS
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
features_providedBONNET PACKING
operating_pressure1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
flow_control_deviceDISK
nominal_thread_size0.500 INCHES ALL ENDS IN
maximum_operating_temp450.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodMANUAL
bonnet_attachment_methodTHREADED
NSN4820-00-142-2837
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 98731-2 · 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
BONNET TYPE: INSIDE SCREW
BONNET ATTACHMENT METHOD: THREADED
THREAD DIRECTION: RIGHT-HAND ALL ENDS
RENEWABLE SEAT RING TYPE: THREADED
FLOW CONTROL DEVICE: DISK
OPERATING PRESSURE: 1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
FEATURES PROVIDED: BONNET PACKING
NOMINAL THREAD SIZE: 0.500 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
BONNET TYPEINSIDE SCREW
BONNET ATTACHMENT METHODTHREADED
THREAD DIRECTIONRIGHT-HAND ALL ENDS
RENEWABLE SEAT RING TYPETHREADED
FLOW CONTROL DEVICEDISK
OPERATING PRESSURE1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
FEATURES PROVIDEDBONNET PACKING
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
9873Interchangeable
interchangeable cross-reference
interchangeable
987-4Interchangeable
interchangeable cross-reference
interchangeable
WSG4001Interchangeable
interchangeable cross-reference
interchangeable
98731-2Interchangeable
interchangeable cross-reference
interchangeable
CIT 4111Interchangeable
interchangeable cross-reference
interchangeable
9723Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 98731-2?
98731-2 is a HOUSING ASSY,VALVE.
What parts can replace 98731-2?
There are 7 known substitutes for 98731-2: 9873, 987-4, WSG4001 and 4 more. Substitute compatibility should be verified for your specific system.
Is 98731-2 still available?
98731-2 is currently cancelled.
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