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Technical Data Sheet
PartsTable / COMPONENT / SX7725/420
SX7725/420 ✓ 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 SX7725/420 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 4820-01-469-1937, 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
SX7725/420
NSN: 4820-01-469-1937
FSC: 4820
CAGE: K3303 — AMS INSTRUMENTATION & CONTROL LIMITED (GBR)
SPECIFICATIONS
Part NumberSX7725/420
NSN4820-01-469-1937
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: SX7725/420 · 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: PLASTIC POLYTETRAFLUOROETHYLENE SEAT
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SINGLE RESPONSE
•
STYLE DESIGNATOR: STRAIGHT THRU
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
OPERATING PRESSURE: 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE SEAT
THREAD SERIES DESIGNATORNPT ALL ENDS
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
STYLE DESIGNATORSTRAIGHT THRU
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
OPERATING PRESSURE2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE PACKING
VALVE OPERATION METHODMANUAL
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
SPECIAL FEATURESITEM HAS 7 IN. DEADMAN SPRING RETURN HANDLE IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
100250Interchangeable
interchangeable cross-reference
interchangeable
22366Interchangeable
interchangeable cross-reference
interchangeable
AU-2951-GDInterchangeable
interchangeable cross-reference
interchangeable
106841Interchangeable
interchangeable cross-reference
interchangeable
WM674AInterchangeable
interchangeable cross-reference
interchangeable
52665-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SX7725/420?
SX7725/420 is a SX7725/420.
What parts can replace SX7725/420?
There are 9 known substitutes for SX7725/420: 100250, 22366, AU-2951-GD and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SX7725/420?
SX7725/420 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-469-1937. 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