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20477-001 — KEEPER,VALVE,CONTROL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

20477-001: KEEPER,VALVE,CONTROL.

The KEEPER,VALVE,CONTROL is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, overall_length: 3.777 INCHES NOMINAL IN, outside_diameter: 2.500 INCHES NOMINAL IN, special_features: 4 MOUNTING HOLES 0.466 IN. DIA IN.

This part is cataloged in the U.S. Government catalog under NSN 4820-01-061-0422, 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
20477-001
NSN: 4820-01-061-0422
NIINs: 010610422, 010615981, 010973783, 011401803, 011525375, 011628808, 011711549
FSC: 4820 — Valves, Nonpowered
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
overall_length3.777 INCHES NOMINAL IN
outside_diameter2.500 INCHES NOMINAL IN
special_features4 MOUNTING HOLES 0.466 IN. DIA IN
NSN4820-01-061-0422
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20477-001 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: ALUMINUM BRONZE,MIL-B-24059
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONALUMINUM BRONZE,MIL-B-24059
END ITEM IDENTIFICATIONSARGENT IND. HUNTINGTON PARK DIV. VALVE ASSEMBLY DWG NO. 20477-001
SUBSTITUTES & CROSS-REFERENCES 1
20477-001FIND5Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 20477-001?
20477-001 is a KEEPER,VALVE,CONTROL.
What parts can replace 20477-001?
There is 1 known substitute for 20477-001: 20477-001FIND5. Substitute compatibility should be verified for your specific system.
What is the NSN for 20477-001?
20477-001 is cataloged in the U.S. Government catalog under NSN 4820-01-061-0422. 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.