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Technical Data Sheet
PartsTable / COMPONENT / GV-31-953-1
GV-31-953-1 ✓ 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 SEAT, flange_diameter: 4.236 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, under_flange_height: 2.433 INCHES NOMINAL IN, body_inside_diameter: 1.148 INCHES NOMINAL IN, body_outside_diameter: 54.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-146-4856, 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
GV-31-953-1
NSN: 4810-01-146-4856
FSC: 4810
CAGE: 04845 — AUTOMATIC SWITCH COMPANY DBA ASCO (USA)
SPECIFICATIONS
materialCOPPER ALLOY SEAT
flange_diameter4.236 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
under_flange_height2.433 INCHES NOMINAL IN
body_inside_diameter1.148 INCHES NOMINAL IN
body_outside_diameter54.000 INCHES NOMINAL IN
seating_surface_shapeFLAT
flange_seat_to_disk_end_height0.485 INCHES NOMINAL IN
NSN4810-01-146-4856
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: GV-31-953-1 · 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
•
BODY OUTSIDE DIAMETER: 54.000 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 2.433 INCHES NOMINAL IN
•
SEATING SURFACE SHAPE: FLAT
•
MATERIAL: COPPER ALLOY SEAT
•
STYLE DESIGNATOR: PLAIN FLANGED
•
FLANGE DIAMETER: 4.236 INCHES NOMINAL IN
•
FLANGE SEAT TO DISK END HEIGHT: 0.485 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 1.148 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER54.000 INCHES NOMINAL IN
UNDER FLANGE HEIGHT2.433 INCHES NOMINAL IN
SEATING SURFACE SHAPEFLAT
MATERIALCOPPER ALLOY SEAT
STYLE DESIGNATORPLAIN FLANGED
FLANGE DIAMETER4.236 INCHES NOMINAL IN
FLANGE SEAT TO DISK END HEIGHT0.485 INCHES NOMINAL IN
BODY INSIDE DIAMETER1.148 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
AV182-430-1Interchangeable
interchangeable cross-reference
interchangeable
AV182-430Interchangeable
interchangeable cross-reference
interchangeable
AV182-430 PIECE 90Interchangeable
interchangeable cross-reference
interchangeable
34-434-1Interchangeable
interchangeable cross-reference
interchangeable
AV182-430-1 ITEM 15, 52, 53Interchangeable
interchangeable cross-reference
interchangeable
287922Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GV-31-953-1?
GV-31-953-1 is a SEAT,VALVE.
What parts can replace GV-31-953-1?
There are 9 known substitutes for GV-31-953-1: AV182-430-1, AV182-430, AV182-430 PIECE 90 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for GV-31-953-1?
GV-31-953-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-146-4856. 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