PartsTable
Technical Data Sheet
LA519-4 ✓ 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 SEAT, seat_angle: 45.0 DEGREES FIRST END, thread_class: 3A FIRST END A, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: FLARED (TUBE) FIRST END, thread_direction: RIGHT-HAND FIRST END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-272-3350, 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
LA519-4
NSN: 4820-00-272-3350
FSC: 4820
CAGE: 46717 — PETTIBONE LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY SEAT
seat_angle45.0 DEGREES FIRST END
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_styleFLARED (TUBE) FIRST END
thread_directionRIGHT-HAND FIRST END
flow_control_deviceDISK OR STEM
nominal_thread_size0.625 INCHES FIRST END IN
valve_operation_methodMANUAL
thread_series_designatorNPT SECOND END
NSN4820-00-272-3350
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: LA519-4 · 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
THREAD SERIES DESIGNATOR: UNF FIRST END
THREAD CLASS: 3A FIRST END A
MATERIAL: COPPER ALLOY BODY
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
NOMINAL THREAD SIZE: 0.250 INCHES SECOND END IN
VALVE OPERATION METHOD: MANUAL
SEAT ANGLE: 45.0 DEGREES FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNF FIRST END
THREAD CLASS3A FIRST END A
MATERIALCOPPER ALLOY BODY
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
MATERIALCOPPER ALLOY SEAT
NOMINAL THREAD SIZE0.250 INCHES SECOND END IN
VALVE OPERATION METHODMANUAL
SEAT ANGLE45.0 DEGREES FIRST END
MATERIALCOPPER ALLOY STEM
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
11075Interchangeable
interchangeable cross-reference
interchangeable
H932798-1PHInterchangeable
interchangeable cross-reference
interchangeable
RX143385-3AInterchangeable
interchangeable cross-reference
interchangeable
11-098-4Interchangeable
interchangeable cross-reference
interchangeable
2100-0326Interchangeable
interchangeable cross-reference
interchangeable
3778-124REVGPCF4BASKETInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LA519-4?
LA519-4 is a COCK,SHUTOFF,SCREW STEM.
What parts can replace LA519-4?
There are 20 known substitutes for LA519-4: 11075, H932798-1PH, RX143385-3A and 17 more. Substitute compatibility should be verified for your specific system.
Is LA519-4 still available?
LA519-4 is currently cancelled.
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