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PartsTable / COMPONENT / 33311-30 ITEM 28
33311-30 ITEM 28 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include special_features: NEXT HIGHER ASSY VALVE GLOBE 1.5 CAGE 57574, end_item_identification: WSD NIMITZ CLASS CVN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-062-8767, 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
33311-30 ITEM 28
NSN: 4820-01-062-8767
FSC: 4820
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
special_featuresNEXT HIGHER ASSY VALVE GLOBE 1.5 CAGE 57574
end_item_identificationWSD NIMITZ CLASS CVN
NSN4820-01-062-8767
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 33311-30 ITEM 28 · 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
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS THAT ARE UNIQUE TO FOSSIL FUEL POWERED SURFACE SHIPS MAIN STEAM, CATAPULT STEAM, AND HIGH PRESSURE STEAM DRAIN SYSTEMS
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS THAT ARE UNIQUE TO FOSSIL FUEL POWERED SURFACE SHIPS MAIN STEAM, CATAPULT STEAM, AND HIGH PRESSURE STEAM DRAIN SYSTEMS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
3BV-A2001Interchangeable
interchangeable cross-reference
interchangeable
33311-3PC24(1/2IN)Interchangeable
interchangeable cross-reference
interchangeable
33310-3 PIECE 24Interchangeable
interchangeable cross-reference
interchangeable
33310-PC-24-1-2INInterchangeable
interchangeable cross-reference
interchangeable
33310Interchangeable
interchangeable cross-reference
interchangeable
A07-3546-000-41Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 33311-30 ITEM 28?
33311-30 ITEM 28 is a STEM,FLUID VALVE.
What parts can replace 33311-30 ITEM 28?
There are 12 known substitutes for 33311-30 ITEM 28: 3BV-A2001, 33311-3PC24(1/2IN), 33310-3 PIECE 24 and 9 more. Substitute compatibility should be verified for your specific system.
Is 33311-30 ITEM 28 still available?
33311-30 ITEM 28 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026