PartsTable
Technical Data Sheet
Download PDF

211054812 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

211054812: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON SEAT, special_features: 1.061 IN. OD; 0.256 IN.

H; FOR 0.250 IN. BALL VALVE IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-350-1522, 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
211054812
NSN: 4820-01-350-1522
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON SEAT
special_features1.061 IN. OD; 0.256 IN. H; FOR 0.250 IN. BALL VALVE IN
NSN4820-01-350-1522
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 211054812 · 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 POLYAMIDE NYLON SEAT
TECHNICAL CHARACTERISTICS
SPECIAL FEATURES1.061 IN. OD; 0.256 IN. H; FOR 0.250 IN. BALL VALVE IN
MATERIALPLASTIC POLYAMIDE NYLON SEAT
SUBSTITUTES & CROSS-REFERENCES 2
DF330661 FIND 8Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
556-6408589Reference 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
Ready to buy 211054812?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 211054812?
211054812 is a SEAT,VALVE.
What parts can replace 211054812?
There are 2 known substitutes for 211054812: DF330661 FIND 8, 556-6408589. Substitute compatibility should be verified for your specific system.
What is the NSN for 211054812?
211054812 is cataloged in the U.S. Government catalog under NSN 4820-01-350-1522. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 211054812

✓ 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.