PartsTable
Technical Data Sheet
MD3993 ✓ 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 CONFERENCE BRIDGE,TELEPHONE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN, OPTIONAL END (PIPE) ALL ENDS, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND ALL ENDS, mounting_position: HORIZONTAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-424-4432, 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
MD3993
NSN: 4820-00-424-4432
FSC: 4820
CAGE: 76558 — MWM-MURPHY DIESEL CO (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN, OPTIONAL END (PIPE) ALL ENDS
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
mounting_positionHORIZONTAL
operating_pressure200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
flow_control_deviceBALL
nominal_thread_size0.250 INCHES ALL ENDS IN
maximum_operating_temp550.0 FAHRENHEIT FIRST RESPONSE DEGF
valve_operation_methodAUTOMATIC
media_for_which_designedWATER-OIL-GAS SECOND RESPONSE
NSN4820-00-424-4432
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: MD3993 · 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
MATERIAL: STEEL CORROSION RESISTING FLOW CONTROL DEVICE
THREAD DIRECTION: RIGHT-HAND ALL ENDS
MAXIMUM OPERATING TEMP: 550.0 FAHRENHEIT FIRST RESPONSE DEGF
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
MOUNTING POSITION: HORIZONTAL
NOMINAL THREAD SIZE: 0.250 INCHES ALL ENDS IN
THREAD SERIES DESIGNATOR: NPT ALL ENDS
STYLE DESIGNATOR: STRAIGHT THRU
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
THREAD DIRECTIONRIGHT-HAND ALL ENDS
MAXIMUM OPERATING TEMP550.0 FAHRENHEIT FIRST RESPONSE DEGF
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
MOUNTING POSITIONHORIZONTAL
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORNPT ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
MATERIALCOPPER ALLOY 922 SEAT
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
GR2261-2-1Interchangeable
interchangeable cross-reference
interchangeable
CW1265Interchangeable
interchangeable cross-reference
interchangeable
416-14Interchangeable
interchangeable cross-reference
interchangeable
950-0422-200Interchangeable
interchangeable cross-reference
interchangeable
BX-9586Interchangeable
interchangeable cross-reference
interchangeable
12-4614Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MD3993?
MD3993 is a CONFERENCE BRIDGE,TELEPHONE.
What parts can replace MD3993?
There are 16 known substitutes for MD3993: GR2261-2-1, CW1265, 416-14 and 13 more. Substitute compatibility should be verified for your specific system.
Is MD3993 still available?
MD3993 is currently cancelled.
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