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Technical Data Sheet
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8191 NUMBER 3 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

8191 NUMBER 3: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-186-9601, 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
8191 NUMBER 3
NSN: 4820-01-186-9601
FSC: 4820 — Valves, Nonpowered
CAGE: 79342 — WILLIAM E WILLIAMS VALVE CORP (USA)
SPECIFICATIONS
materialSTEEL
NSN4820-01-186-9601
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8191 NUMBER 3 · 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: STEEL
TECHNICAL CHARACTERISTICS
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 1
8191Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8191 NUMBER 3?
8191 NUMBER 3 is a DISK,VALVE.
What parts can replace 8191 NUMBER 3?
There is 1 known substitute for 8191 NUMBER 3: 8191. Substitute compatibility should be verified for your specific system.
What is the NSN for 8191 NUMBER 3?
8191 NUMBER 3 is cataloged in the U.S. Government catalog under NSN 4820-01-186-9601. This indicates validated use in U.S. government and defense supply chains.
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