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2477220-20 — FLUSHING BLOCK,HYDRAULIC SYSTEM

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

2477220-20: FLUSHING BLOCK,HYDRAULIC SYSTEM.

FLUSHING BLOCK,HYDRAULIC SYSTEM. Key specifications include overall_length: 12.000 INCHES NOMINAL IN, special_features: TESTED 4500PSI.,6 HOLE FLANGE ATTACH.. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-485-5029, 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
2477220-20
NSN: 4820-01-485-5029
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
port_quantity1
overall_length12.000 INCHES NOMINAL IN
special_featuresTESTED 4500PSI.,6 HOLE FLANGE ATTACH.
NSN4820-01-485-5029
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2477220-20 · 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
•
PORT QUANTITY: 1
TECHNICAL CHARACTERISTICS
PORT QUANTITY1
OVERALL LENGTH12.000 INCHES NOMINAL IN
SPECIAL FEATURESTESTED 4500PSI.,6 HOLE FLANGE ATTACH.
SUBSTITUTES & CROSS-REFERENCES 1
2477220Reference 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 2477220-20?
2477220-20 is a FLUSHING BLOCK,HYDRAULIC SYSTEM.
What parts can replace 2477220-20?
There is 1 known substitute for 2477220-20: 2477220. Substitute compatibility should be verified for your specific system.
What is the NSN for 2477220-20?
2477220-20 is cataloged in the U.S. Government catalog under NSN 4820-01-485-5029. 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.