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Technical Data Sheet
PartsTable / COMPONENT / 33311-30 ITEM 8A 1.25 IN
33311-30 ITEM 8A 1.25 IN ✓ 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 33311-30 ITEM 8A 1.25 IN is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-395-7400, 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 8A 1.25 IN
NSN: 4820-01-395-7400
FSC: 4820
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
Part Number33311-30 ITEM 8A 1.25 IN
NSN4820-01-395-7400
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 33311-30 ITEM 8A 1.25 IN · 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
•
MATERIAL: STEEL CORROSION RESISTING
•
STYLE DESIGNATOR: POPPET
•
MEDIA FOR WHICH DESIGNED: WATER
•
SHANK DIAMETER: 1.421 INCHES NOMINAL IN
•
FLANGE DIAMETER: 1.421 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CORROSION RESISTING
STYLE DESIGNATORPOPPET
MEDIA FOR WHICH DESIGNEDWATER
OVERALL HEIGHT0.875 INCHES NOMINAL IN
SHANK DIAMETER1.421 INCHES NOMINAL IN
SPECIAL FEATURESUSED ON A STOP CHECK VALVE.
FLANGE DIAMETER1.421 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
180-7862Interchangeable
interchangeable cross-reference
interchangeable
676-1641-208Interchangeable
interchangeable cross-reference
interchangeable
33-3-11Interchangeable
interchangeable cross-reference
interchangeable
33311-024Interchangeable
interchangeable cross-reference
interchangeable
410-GP-Y-11Interchangeable
interchangeable cross-reference
interchangeable
10311Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 33311-30 ITEM 8A 1.25 IN?
33311-30 ITEM 8A 1.25 IN is a 33311-30 ITEM 8A 1.25 IN.
What parts can replace 33311-30 ITEM 8A 1.25 IN?
There are 17 known substitutes for 33311-30 ITEM 8A 1.25 IN: 180-7862, 676-1641-208, 33-3-11 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 33311-30 ITEM 8A 1.25 IN?
33311-30 ITEM 8A 1.25 IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-395-7400. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026