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Technical Data Sheet
PartsTable / COMPONENT / 502-3/4
502-3/4 ✓ 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 502-3/4 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-309-0926, 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
502-3/4
NSN: 4820-01-309-0926
FSC: 4820
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
Part Number502-3/4
NSN4820-01-309-0926
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 502-3/4 · 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
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SINGLE RESPONSE
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE PACKING
•
STYLE DESIGNATOR: STRAIGHT THRU
•
OPERATING PRESSURE: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
BONNET ATTACHMENT METHOD: THREADED
•
BONNET TYPE: INSIDE SCREW
•
FLOW CONTROL DEVICE: DISK
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS (FLIS)
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE PACKING
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
BONNET ATTACHMENT METHODTHREADED
BONNET TYPEINSIDE SCREW
FLOW CONTROL DEVICEDISK
VALVE OPERATION METHODMANUAL
NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES ALL ENDS IN
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
23813Interchangeable
interchangeable cross-reference
interchangeable
50234Interchangeable
interchangeable cross-reference
interchangeable
SC-B-70102Interchangeable
interchangeable cross-reference
interchangeable
42-1091Interchangeable
interchangeable cross-reference
interchangeable
3459-11Interchangeable
interchangeable cross-reference
interchangeable
50234-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 502-3/4?
502-3/4 is a 502-3/4.
What parts can replace 502-3/4?
There are 7 known substitutes for 502-3/4: 23813, 50234, SC-B-70102 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 502-3/4?
502-3/4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-309-0926. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026