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Technical Data Sheet
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MARB3 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

MARB3: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-681-9573, 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
MARB3
NSN: 4820-01-681-9573
NIINs: 016819573, 016824938
FSC: 4820 — Valves, Nonpowered
CAGE: 62766 — EXIDYNE INSTRUMENTATION TECHNOLOGIES INC (USA)
SPECIFICATIONS
Part NumberMARB3
NSN4820-01-681-9573
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: MARB3 · 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
SUBSTITUTES & CROSS-REFERENCES 2
MARB3 REV- ITEM 6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MARB3/SHEET 1Same 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 MARB3?
MARB3 is a SEAT,VALVE.
What parts can replace MARB3?
There are 2 known substitutes for MARB3: MARB3 REV- ITEM 6, MARB3/SHEET 1. Substitute compatibility should be verified for your specific system.
What is the NSN for MARB3?
MARB3 is cataloged in the U.S. Government catalog under NSN 4820-01-681-9573. This indicates validated use in U.S. government and defense supply chains.
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