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M3011-645A 8IN — VALVE,BUTTERFLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

M3011-645A 8IN: VALVE,BUTTERFLY.

The VALVE,BUTTERFLY is a the manufacturer industrial component. Key specifications include material: IRON BODY, valve_size: 8.000 INCHES IN, style_designator: STRAIGHT THRU, mounting_facility: WAFER, operating_pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, valve_operation_method: MANUAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-344-9004, 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
M3011-645A 8IN
NSN: 4820-01-344-9004
FSC: 4820 — Valves, Nonpowered
CAGE: 1NB39 — DOVER RESOURCES, INC. DIV NORRISEAL (USA)
SPECIFICATIONS
materialIRON BODY
valve_size8.000 INCHES IN
style_designatorSTRAIGHT THRU
mounting_facilityWAFER
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
valve_operation_methodMANUAL
NSN4820-01-344-9004
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: M3011-645A 8IN · 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
•
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
VALVE SIZE: 8.000 INCHES IN
•
MOUNTING FACILITY: WAFER
•
MATERIAL: IRON BODY
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VALVE SIZE8.000 INCHES IN
MOUNTING FACILITYWAFER
MATERIALIRON BODY
VALVE OPERATION METHODMANUAL
SUBSTITUTES & CROSS-REFERENCES 3
920-138Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
920-138 8INReference document
Same NSN cross-reference
Reference document — Secondary reference
920K138Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is M3011-645A 8IN?
M3011-645A 8IN is a VALVE,BUTTERFLY.
What parts can replace M3011-645A 8IN?
There are 3 known substitutes for M3011-645A 8IN: 920-138, 920-138 8IN, 920K138. Substitute compatibility should be verified for your specific system.
What is the NSN for M3011-645A 8IN?
M3011-645A 8IN is cataloged in the U.S. Government catalog under NSN 4820-01-344-9004. 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.