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V-3281 1/2IN ✓ 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 V-3281 1/2IN 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 4820-01-185-2297, 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
V-3281 1/2IN
NSN: 4820-01-185-2297
FSC: 4820
CAGE: 03670 — TYCO FIRE PRODUCTS LP (USA)
SPECIFICATIONS
Part NumberV-3281 1/2IN
NSN4820-01-185-2297
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: V-3281 1/2IN · 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
•
FLANGE SHAPE: ROUND WITH HOLES FIRST ENDROUND WITH HOLES FIRST END
•
NOMINAL THICKNESS: 0.688 INCHES FIRST END0.688 INCHES FIRST END IN
•
BOLT HOLE QUANTITY: 3 FIRST END3 FIRST END
•
FLANGE FACE DESIGN: PLAIN FIRST ENDPLAIN FIRST END
•
VALVE OPERATION METHOD: MANUALMANUAL
•
BOLT HOLE NOMINAL DIAMETER: 0.562 INCHES FIRST END0.562 INCHES FIRST END IN
•
FACE TO FACE DISTANCE: 4.000 INCHES4.000 INCHES IN
•
MATERIAL: COPPER ALLOY BODY
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE SHAPEROUND WITH HOLES FIRST ENDROUND WITH HOLES FIRST END
NOMINAL THICKNESS0.688 INCHES FIRST END0.688 INCHES FIRST END IN
BOLT HOLE QUANTITY3 FIRST END3 FIRST END
FLANGE FACE DESIGNPLAIN FIRST ENDPLAIN FIRST END
VALVE OPERATION METHODMANUALMANUAL
BOLT HOLE NOMINAL DIAMETER0.562 INCHES FIRST END0.562 INCHES FIRST END IN
FACE TO FACE DISTANCE4.000 INCHES4.000 INCHES IN
MATERIALCOPPER ALLOY BODY
VALVE SIZE0.500 INCHES0.500 INCHES IN
BOLT CIRCLE NOMINAL DIAMETER2.438 INCHES FIRST END2.438 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
20-03381Interchangeable
interchangeable cross-reference
interchangeable
V-5446PIECE7Interchangeable
interchangeable cross-reference
interchangeable
V-3281Interchangeable
interchangeable cross-reference
interchangeable
V3281 PC5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is V-3281 1/2IN?
V-3281 1/2IN is a V-3281 1/2IN.
What parts can replace V-3281 1/2IN?
There are 4 known substitutes for V-3281 1/2IN: 20-03381, V-5446PIECE7, V-3281 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for V-3281 1/2IN?
V-3281 1/2IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-185-2297. 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