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803-6397408-PC023 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

803-6397408-PC023: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OR COPPER ALLOY SEAT, flange_diameter: 3.125 INCHES NOMINAL IN, special_features: AFFF/MAGAZINE, style_designator: THREADED FLANGED, body_inside_diameter: 2.500 INCHES NOMINAL IN, seating_surface_shape: FLAT. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-396-5106, 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
803-6397408-PC023
NSN: 4810-01-396-5106
FSC: 4810 — Valves, Powered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY OR COPPER ALLOY SEAT
flange_diameter3.125 INCHES NOMINAL IN
special_featuresAFFF/MAGAZINE
style_designatorTHREADED FLANGED
body_inside_diameter2.500 INCHES NOMINAL IN
seating_surface_shapeFLAT
thread_series_designatorUN SINGLE THREADED PORTION
NSN4810-01-396-5106
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 803-6397408-PC023 · 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
•
FLANGE DIAMETER: 3.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
BODY INSIDE DIAMETER: 2.500 INCHES NOMINAL IN
•
MATERIAL: NICKEL ALLOY OR COPPER ALLOY SEAT
•
THREAD SERIES DESIGNATOR: UN SINGLE THREADED PORTION
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER3.125 INCHES NOMINAL IN
STYLE DESIGNATORTHREADED FLANGED
BODY INSIDE DIAMETER2.500 INCHES NOMINAL IN
SPECIAL FEATURESAFFF/MAGAZINE
MATERIALNICKEL ALLOY OR COPPER ALLOY SEAT
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
SEATING SURFACE SHAPEFLAT
SUBSTITUTES & CROSS-REFERENCES 2
803-6397408Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
6397408Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 803-6397408-PC023?
803-6397408-PC023 is a SEAT,VALVE.
What parts can replace 803-6397408-PC023?
There are 2 known substitutes for 803-6397408-PC023: 803-6397408, 6397408. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-6397408-PC023?
803-6397408-PC023 is cataloged in the U.S. Government catalog under NSN 4810-01-396-5106. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.