PartsTable
Technical Data Sheet
594-1 3-4 ✓ 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 LOCKNUT,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY SEAT, bonnet_type: INSIDE SCREW, connection_type: UNTHREADED INTERNAL PIPE FIRST END, connection_style: STREAMLINED WITH TWO BRAZING RINGS FIRST END, style_designator: ANGLE, operating_pressure: 700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-944-8740, 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
594-1 3-4
NSN: 4820-00-944-8740
FSC: 4820
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
materialNICKEL ALLOY SEAT
bonnet_typeINSIDE SCREW
connection_typeUNTHREADED INTERNAL PIPE FIRST END
connection_styleSTREAMLINED WITH TWO BRAZING RINGS FIRST END
style_designatorANGLE
operating_pressure700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
maximum_operating_temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodMANUAL
bonnet_attachment_methodTHREADED
media_for_which_designedWATER-OIL-GAS SINGLE RESPONSE
renewable_seat_ring_typeTHREADED
NSN4820-00-944-8740
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 594-1 3-4 · 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
BONNET TYPE: INSIDE SCREW
BONNET ATTACHMENT METHOD: THREADED
NOMINAL PIPE SIZE ACCOMMODATED: 0.750 INCHES FIRST END IN
CONNECTION STYLE: STREAMLINED WITH TWO BRAZING RINGS FIRST END
FLOW CONTROL DEVICE: DISK
MATERIAL: NICKEL ALLOY SEAT
MAXIMUM OPERATING TEMP: 150.0 FAHRENHEIT SINGLE RESPONSE DEGF
TECHNICAL CHARACTERISTICS (FLIS)
BONNET TYPEINSIDE SCREW
BONNET ATTACHMENT METHODTHREADED
NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES FIRST END IN
CONNECTION STYLESTREAMLINED WITH TWO BRAZING RINGS FIRST END
FLOW CONTROL DEVICEDISK
MATERIALNICKEL ALLOY SEAT
MATERIALCOPPER ALLOY BODY
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SINGLE RESPONSE DEGF
RENEWABLE SEAT RING TYPETHREADED
VALVE OPERATION METHODMANUAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
2620-902Interchangeable
interchangeable cross-reference
interchangeable
845-1889587ASSYE1/2INInterchangeable
interchangeable cross-reference
interchangeable
2620-902L1Interchangeable
interchangeable cross-reference
interchangeable
2620-902ASSYCInterchangeable
interchangeable cross-reference
interchangeable
2620-902ASSYB2Interchangeable
interchangeable cross-reference
interchangeable
845-1889587ASSYB2L1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 594-1 3-4?
594-1 3-4 is a LOCKNUT,TUBE FITTING.
What parts can replace 594-1 3-4?
There are 24 known substitutes for 594-1 3-4: 2620-902, 845-1889587ASSYE1/2IN, 2620-902L1 and 21 more. Substitute compatibility should be verified for your specific system.
Is 594-1 3-4 still available?
594-1 3-4 is currently cancelled.
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