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190000 PIECE 3 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

190000 PIECE 3: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include pressure_rating: 25.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS, special_features: THIS DISK STYLE IS A SOLID POPPET, NHA 1/4 INCH CHECK VALVE IN, end_item_identification: W/S DESIGNATOR LOS ANGELES CLASS SSN (688), media_for_which_designed: HYDRAULIC FLUID OR AIR. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-485-1497, 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
190000 PIECE 3
NSN: 4820-01-485-1497
FSC: 4820 — Valves, Nonpowered
CAGE: 16780 — EATON AEROSPACE LLC (USA)
SPECIFICATIONS
pressure_rating25.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
special_featuresTHIS DISK STYLE IS A SOLID POPPET, NHA 1/4 INCH CHECK VALVE IN
end_item_identificationW/S DESIGNATOR LOS ANGELES CLASS SSN (688)
media_for_which_designedHYDRAULIC FLUID OR AIR
NSN4820-01-485-1497
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 190000 PIECE 3 · 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
•
PRESSURE RATING: 25.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
•
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID OR AIR
TECHNICAL CHARACTERISTICS
PRESSURE RATING25.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
SPECIAL FEATURESTHIS DISK STYLE IS A SOLID POPPET, NHA 1/4 INCH CHECK VALVE IN
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID OR AIR
END ITEM IDENTIFICATIONW/S DESIGNATOR LOS ANGELES CLASS SSN (688)
SUBSTITUTES & CROSS-REFERENCES 2
190000Reference document
Same NSN cross-reference
Reference document — Secondary reference
90H304Reference 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 190000 PIECE 3?
190000 PIECE 3 is a DISK,VALVE.
What parts can replace 190000 PIECE 3?
There are 2 known substitutes for 190000 PIECE 3: 190000, 90H304. Substitute compatibility should be verified for your specific system.
What is the NSN for 190000 PIECE 3?
190000 PIECE 3 is cataloged in the U.S. Government catalog under NSN 4820-01-485-1497. 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.