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90H304CP — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

90H304CP: 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 4820-01-520-9577, 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
90H304CP
NSN: 4820-01-520-9577
FSC: 4820 — Valves, Nonpowered
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (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
NSN4820-01-520-9577
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 90H304CP · 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
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
MEDIA FOR WHICH DESIGNED: OXYGEN, GASEOUS OR NITROGEN, LIQUID
•
MATERIAL: NICKEL ALLOY
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONZZZY
MEDIA FOR WHICH DESIGNEDOXYGEN, GASEOUS OR NITROGEN, LIQUID
END ITEM IDENTIFICATION1/4 INCH CHECK VALVE IN
MATERIALNICKEL ALLOY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
SUBSTITUTES & CROSS-REFERENCES 4
190000 PC NO. 3Reference document
Same NSN cross-reference
Reference document — Secondary reference
190000Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
90H304Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
190000 PC NO. 3CPSame 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 90H304CP?
90H304CP is a DISK,VALVE.
What parts can replace 90H304CP?
There are 4 known substitutes for 90H304CP: 190000 PC NO. 3, 190000, 90H304 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 90H304CP?
90H304CP is cataloged in the U.S. Government catalog under NSN 4820-01-520-9577. 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.