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256202 PC 11 (MOD) — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

256202 PC 11 (MOD): SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYURETHANE SEAT, special_features: NEXT HIGHER ASSY VALVE,BALL, style_designator: PLAIN FLANGED, seating_surface_shape: FLAT, end_item_identification: W/S CODE LOS ANGELES CLASS SSN (688). This part is cataloged in the U.S.

Government catalog under NSN 4820-01-460-9311, 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
256202 PC 11 (MOD)
NSN: 4820-01-460-9311
FSC: 4820 — Valves, Nonpowered
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialPLASTIC POLYURETHANE SEAT
special_featuresNEXT HIGHER ASSY VALVE,BALL
style_designatorPLAIN FLANGED
seating_surface_shapeFLAT
end_item_identificationW/S CODE LOS ANGELES CLASS SSN (688)
NSN4820-01-460-9311
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 256202 PC 11 (MOD) · 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
•
STYLE DESIGNATOR: PLAIN FLANGED
•
MATERIAL: PLASTIC POLYURETHANE SEAT
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORPLAIN FLANGED
SPECIAL FEATURESNEXT HIGHER ASSY VALVE,BALL
END ITEM IDENTIFICATIONW/S CODE LOS ANGELES CLASS SSN (688)
MATERIALPLASTIC POLYURETHANE SEAT
SEATING SURFACE SHAPEFLAT
SUBSTITUTES & CROSS-REFERENCES 1
7121044Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 256202 PC 11 (MOD)?
256202 PC 11 (MOD) is a SEAT,VALVE.
What parts can replace 256202 PC 11 (MOD)?
There is 1 known substitute for 256202 PC 11 (MOD): 7121044. Substitute compatibility should be verified for your specific system.
What is the NSN for 256202 PC 11 (MOD)?
256202 PC 11 (MOD) is cataloged in the U.S. Government catalog under NSN 4820-01-460-9311. 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.