PartsTable
Technical Data Sheet
B5-203 ✓ 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 COCK,SHUTOFF,SCREW STEM is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, connection_type: THREADED EXTERNAL PIPE FIRST END, connection_style: PLAIN (TUBE) SECOND END, style_designator: ANGLE, thread_direction: RIGHT-HAND FIRST END, flow_control_device: CONE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-918-2491, 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
B5-203
NSN: 4820-00-918-2491
FSC: 4820
CAGE: 72853 — STANT CORP EDELMANN DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
connection_typeTHREADED EXTERNAL PIPE FIRST END
connection_stylePLAIN (TUBE) SECOND END
style_designatorANGLE
thread_directionRIGHT-HAND FIRST END
flow_control_deviceCONE
nominal_thread_size0.125 INCHES FIRST END IN
valve_operation_methodMANUAL
end_item_identificationARMORED MULTI-PURPOSE VEHICLE (AMPV)
thread_series_designatorNPT FIRST END
nominal_outside_diameter_tube_accommodated0.125 INCHES SECOND END IN
NSN4820-00-918-2491
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: B5-203 · 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: COPPER ALLOY BODY
THREAD SERIES DESIGNATOR: NPT FIRST END
CONNECTION TYPE: UNTHREADED INTERNAL TUBE SECOND END
STYLE DESIGNATOR: ANGLE
CONNECTION STYLE: PLAIN (PIPE) FIRST END
NOMINAL THREAD SIZE: 0.125 INCHES FIRST END IN
THREAD DIRECTION: RIGHT-HAND FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY BODY
THREAD SERIES DESIGNATORNPT FIRST END
CONNECTION TYPEUNTHREADED INTERNAL TUBE SECOND END
STYLE DESIGNATORANGLE
CONNECTION STYLEPLAIN (PIPE) FIRST END
NOMINAL THREAD SIZE0.125 INCHES FIRST END IN
THREAD DIRECTIONRIGHT-HAND FIRST END
CONNECTION STYLEPLAIN (TUBE) SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.125 INCHES SECOND END IN
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
551-SEInterchangeable
interchangeable cross-reference
interchangeable
32121Interchangeable
interchangeable cross-reference
interchangeable
3VP340Interchangeable
interchangeable cross-reference
interchangeable
203SSInterchangeable
interchangeable cross-reference
interchangeable
6203-2RSInterchangeable
interchangeable cross-reference
interchangeable
77033Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B5-203?
B5-203 is a COCK,SHUTOFF,SCREW STEM.
What parts can replace B5-203?
There are 21 known substitutes for B5-203: 551-SE, 32121, 3VP340 and 18 more. Substitute compatibility should be verified for your specific system.
Is B5-203 still available?
B5-203 is currently cancelled.
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