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644850-103 — VALVE,BUTTERFLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

644850-103: VALVE,BUTTERFLY.

The VALVE,BUTTERFLY is a the manufacturer industrial component. Key specifications include phase: TWO, operating_pressure: 17.5 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, valve_operation_method: ELECTRIC MOTOR, media_for_which_designed: AIR SINGLE RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-142-8229, 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
644850-103
NSN: 4810-01-142-8229
FSC: 4810 — Valves, Powered
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
phaseTWO
operating_pressure17.5 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
valve_operation_methodELECTRIC MOTOR
media_for_which_designedAIR SINGLE RESPONSE
NSN4810-01-142-8229
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 644850-103 · 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
•
PHASE: TWO
•
OPERATING PRESSURE: 17.5 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MEDIA FOR WHICH DESIGNED: AIR SINGLE RESPONSE
•
VALVE OPERATION METHOD: ELECTRIC MOTOR
TECHNICAL CHARACTERISTICS
PHASETWO
OPERATING PRESSURE17.5 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MEDIA FOR WHICH DESIGNEDAIR SINGLE RESPONSE
VALVE OPERATION METHODELECTRIC MOTOR
OTHER ITEMS IN FSC 4810 — Valves, Powered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4810-00-001-1247 4810-00-001-4499 4810-00-001-4531 4810-00-001-4532 4810-00-001-4554 4810-00-001-4555 4810-00-001-4556 4810-00-001-4611
SUBSTITUTES & CROSS-REFERENCES 1
644850-107Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 644850-103?
644850-103 is a VALVE,BUTTERFLY.
What parts can replace 644850-103?
There is 1 known substitute for 644850-103: 644850-107. Substitute compatibility should be verified for your specific system.
What is the NSN for 644850-103?
644850-103 is cataloged in the U.S. Government catalog under NSN 4810-01-142-8229. 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.