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911J511 — VALVE,BUTTERFLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

911J511: VALVE,BUTTERFLY.

The VALVE,BUTTERFLY is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY STEM, special_features: VALVE SIZE 6.00 IN. IN, style_designator: STRAIGHT THRU, mounting_facility: WAFER, valve_operation_method: MANUAL.

This part is cataloged in the U.S. Government catalog under NSN 4820-01-212-9976, 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
911J511
NSN: 4820-01-212-9976
FSC: 4820 — Valves, Nonpowered
CAGE: 1NB39 — DOVER RESOURCES, INC. DIV NORRISEAL (USA)
SPECIFICATIONS
materialNICKEL ALLOY STEM
special_featuresVALVE SIZE 6.00 IN. IN
style_designatorSTRAIGHT THRU
mounting_facilityWAFER
valve_operation_methodMANUAL
NSN4820-01-212-9976
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 911J511 · 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
•
STYLE DESIGNATOR: STRAIGHT THRU
•
MOUNTING FACILITY: WAFER
•
MATERIAL: COPPER ALLOY BODY
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSTRAIGHT THRU
MOUNTING FACILITYWAFER
SPECIAL FEATURESVALVE SIZE 6.00 IN. IN
MATERIALCOPPER ALLOY BODY
MATERIALNICKEL ALLOY STEM
VALVE OPERATION METHODMANUAL
SUBSTITUTES & CROSS-REFERENCES 1
911-511Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 911J511?
911J511 is a VALVE,BUTTERFLY.
What parts can replace 911J511?
There is 1 known substitute for 911J511: 911-511. Substitute compatibility should be verified for your specific system.
What is the NSN for 911J511?
911J511 is cataloged in the U.S. Government catalog under NSN 4820-01-212-9976. 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.