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PartsTable / COMPONENT / T636-4PC25
T636-4PC25 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, flange_diameter: 1.186 INCHES NOMINAL IN, style_designator: THREADED FLANGED, surface_treatment: ANODIZE OVERALL, seating_surface_shape: FLAT, seal_accommodation_type: RECESSED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-389-4583, 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
T636-4PC25
NSN: 4820-00-389-4583
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
flange_diameter1.186 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
surface_treatmentANODIZE OVERALL
seating_surface_shapeFLAT
seal_accommodation_typeRECESSED
NSN4820-00-389-4583
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: T636-4PC25 · 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
•
SEATING SURFACE SHAPE: FLAT
•
SEAL ACCOMMODATION TYPE: RECESSED
•
STYLE DESIGNATOR: THREADED FLANGED
•
SURFACE TREATMENT: ANODIZE OVERALL
•
MATERIAL: COPPER ALLOY OVERALL
•
FLANGE DIAMETER: 1.186 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SEATING SURFACE SHAPEFLAT
SEAL ACCOMMODATION TYPERECESSED
STYLE DESIGNATORTHREADED FLANGED
SURFACE TREATMENTANODIZE OVERALL
MATERIALCOPPER ALLOY OVERALL
FLANGE DIAMETER1.186 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
GGG-H-86 TY11CL3Interchangeable
interchangeable cross-reference
interchangeable
13611Interchangeable
interchangeable cross-reference
interchangeable
A-A-1288Interchangeable
interchangeable cross-reference
interchangeable
15610Interchangeable
interchangeable cross-reference
interchangeable
8318XSInterchangeable
interchangeable cross-reference
interchangeable
476406Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is T636-4PC25?
T636-4PC25 is a SEAT,VALVE.
What parts can replace T636-4PC25?
There are 17 known substitutes for T636-4PC25: GGG-H-86 TY11CL3, 13611, A-A-1288 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for T636-4PC25?
T636-4PC25 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-389-4583. 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