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540-703-080-139-050 — PARTS KIT,BUTTERFLY VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

540-703-080-139-050: PARTS KIT,BUTTERFLY VALVE.

The PARTS KIT,BUTTERFLY VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 958 FLOW CONTROL DEVICE, valve_size: 8.000 INCHES IN, style_designator: STRAIGHT THRU, mounting_facility: WAFER, valve_operation_method: MANUAL, end_item_identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-421-5285, 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
540-703-080-139-050
NSN: 4820-01-421-5285
FSC: 4820 — Valves, Nonpowered
CAGE: 04613 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP (USA)
SPECIFICATIONS
materialCOPPER ALLOY 958 FLOW CONTROL DEVICE
valve_size8.000 INCHES IN
style_designatorSTRAIGHT THRU
mounting_facilityWAFER
valve_operation_methodMANUAL
end_item_identificationSTRATEGIC SEALIFT CONVERSION SHIPS CLASS
media_for_which_designedWATER, SALT SINGLE RESPONSE
NSN4820-01-421-5285
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 540-703-080-139-050 · 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
•
VALVE SIZE: 8.000 INCHES IN
•
MOUNTING FACILITY: WAFER
•
MEDIA FOR WHICH DESIGNED: WATER, SALT SINGLE RESPONSE
•
MATERIAL: STEEL COMP 316 STEM
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSTRAIGHT THRU
VALVE SIZE8.000 INCHES IN
MOUNTING FACILITYWAFER
MEDIA FOR WHICH DESIGNEDWATER, SALT SINGLE RESPONSE
END ITEM IDENTIFICATIONSTRATEGIC SEALIFT CONVERSION SHIPS CLASS
MATERIALSTEEL COMP 316 STEM
MATERIALCOPPER ALLOY 958 FLOW CONTROL DEVICE
MATERIALIRON CAST UNS F32800 BODY
MATERIALRUBBER FLUOROCARBON CLASS FPM SEAT
VALVE OPERATION METHODMANUAL
SUBSTITUTES & CROSS-REFERENCES 1
D139-8-540Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 540-703-080-139-050?
540-703-080-139-050 is a PARTS KIT,BUTTERFLY VALVE.
What parts can replace 540-703-080-139-050?
There is 1 known substitute for 540-703-080-139-050: D139-8-540. Substitute compatibility should be verified for your specific system.
What is the NSN for 540-703-080-139-050?
540-703-080-139-050 is cataloged in the U.S. Government catalog under NSN 4820-01-421-5285. 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.