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211054191 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

211054191: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC ACETAL SEAT, special_features: FOR 5IN. BALL VALVE ;SEAWATER SERVICE; 3.940 IN .

ID IN. This part is cataloged in the U.S. Government catalog under NSN 4820-01-377-3879, 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
211054191
NSN: 4820-01-377-3879
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialPLASTIC ACETAL SEAT
special_featuresFOR 5IN. BALL VALVE ;SEAWATER SERVICE; 3.940 IN . ID IN
NSN4820-01-377-3879
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 211054191 · 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 ACETAL SEAT
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESFOR 5IN. BALL VALVE ;SEAWATER SERVICE; 3.940 IN . ID IN
MATERIALPLASTIC ACETAL SEAT
SUBSTITUTES & CROSS-REFERENCES 2
801-6408775-19Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6408775Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 211054191?
211054191 is a SEAT,VALVE.
What parts can replace 211054191?
There are 2 known substitutes for 211054191: 801-6408775-19, 6408775. Substitute compatibility should be verified for your specific system.
What is the NSN for 211054191?
211054191 is cataloged in the U.S. Government catalog under NSN 4820-01-377-3879. 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.