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90H304 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

90H304: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, end_item_identification: 1/4 INCH CHECK VALVE IN, media_for_which_designed: OXYGEN, GASEOUS OR NITROGEN, LIQUID, criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330. 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
90H304
NSN: 4820-01-485-1497
NIINs: 014851497, 015209577
FSC: 4820 — Valves, Nonpowered
CAGE: 16780 — EATON AEROSPACE LLC (USA)
SPECIFICATIONS
materialNICKEL ALLOY
end_item_identification1/4 INCH CHECK VALVE IN
media_for_which_designedOXYGEN, GASEOUS OR NITROGEN, LIQUID
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
NSN4820-01-485-1497
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 90H304 · 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
190000 PIECE 3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 90H304?
90H304 is a DISK,VALVE.
What parts can replace 90H304?
There are 2 known substitutes for 90H304: 190000, 190000 PIECE 3. Substitute compatibility should be verified for your specific system.
What is the NSN for 90H304?
90H304 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.