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054729 ITEM 20 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

054729 ITEM 20: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY SEAT, special_features: VALVE,GATE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-411-4012, 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
054729 ITEM 20
NSN: 4820-01-411-4012
FSC: 4820 — Valves, Nonpowered
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
materialNICKEL ALLOY SEAT
special_featuresVALVE,GATE
NSN4820-01-411-4012
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 054729 ITEM 20 · 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: NICKEL ALLOY SEAT
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESVALVE,GATE
MATERIALNICKEL ALLOY SEAT
SUBSTITUTES & CROSS-REFERENCES 2
109440Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
054729Reference 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 054729 ITEM 20?
054729 ITEM 20 is a SEAT,VALVE.
What parts can replace 054729 ITEM 20?
There are 2 known substitutes for 054729 ITEM 20: 109440, 054729. Substitute compatibility should be verified for your specific system.
What is the NSN for 054729 ITEM 20?
054729 ITEM 20 is cataloged in the U.S. Government catalog under NSN 4820-01-411-4012. 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.