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PartsTable / COMPONENT / 911-508 REF 2 2IN
911-508 REF 2 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

HOUSING,CYLINDER,PNEUMATIC ACTUA. Key specifications include material: NICKEL ALLOY, outside_diameter: 2.000 INCHES NOMINAL IN, style_designator: BUTTERFLY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-137-8386, 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
911-508 REF 2 2IN
NSN: 4820-01-137-8386
FSC: 4820
CAGE: 1NB39 — DOVER RESOURCES, INC. DIV NORRISEAL (USA)
SPECIFICATIONS
materialNICKEL ALLOY
outside_diameter2.000 INCHES NOMINAL IN
style_designatorBUTTERFLY
NSN4820-01-137-8386
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 911-508 REF 2 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
•
MATERIAL: NICKEL ALLOY
•
STYLE DESIGNATOR: BUTTERFLY
•
OUTSIDE DIAMETER: 2.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALNICKEL ALLOY
STYLE DESIGNATORBUTTERFLY
OUTSIDE DIAMETER2.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
28742Interchangeable
interchangeable cross-reference
interchangeable
VM911M7AInterchangeable
interchangeable cross-reference
interchangeable
946133-0023Interchangeable
interchangeable cross-reference
interchangeable
55-069-3196Interchangeable
interchangeable cross-reference
interchangeable
911-10Interchangeable
interchangeable cross-reference
interchangeable
911-229Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 911-508 REF 2 2IN?
911-508 REF 2 2IN is a HOUSING,CYLINDER,PNEUMATIC ACTUA.
What parts can replace 911-508 REF 2 2IN?
There are 16 known substitutes for 911-508 REF 2 2IN: 28742, VM911M7A, 946133-0023 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 911-508 REF 2 2IN?
911-508 REF 2 2IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-137-8386. 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