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A49531-2MFD — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

A49531-2MFD: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, overall_height: 3.930 INCHES NOMINAL IN, inside_diameter: 4.000 INCHES NOMINAL IN, outside_diameter: 4.370 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-169-1977, 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
A49531-2MFD
NSN: 4820-01-169-1977
FSC: 4820 — Valves, Nonpowered
CAGE: 11859 — HUNT VALVE COMPANY, INC. (USA)
SPECIFICATIONS
materialNICKEL ALLOY
overall_height3.930 INCHES NOMINAL IN
inside_diameter4.000 INCHES NOMINAL IN
outside_diameter4.370 INCHES NOMINAL IN
NSN4820-01-169-1977
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A49531-2MFD · 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
•
OUTSIDE DIAMETER: 4.370 INCHES NOMINAL IN
•
INSIDE DIAMETER: 4.000 INCHES NOMINAL IN
•
MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT3.930 INCHES NOMINAL IN
OUTSIDE DIAMETER4.370 INCHES NOMINAL IN
INSIDE DIAMETER4.000 INCHES NOMINAL IN
MATERIALNICKEL ALLOY
SUBSTITUTES & CROSS-REFERENCES 3
D49918Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
D49918 ITEM 5Reference document
Same NSN cross-reference
Reference document — Secondary reference
A49531-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A49531-2MFD?
A49531-2MFD is a DISK,VALVE.
What parts can replace A49531-2MFD?
There are 3 known substitutes for A49531-2MFD: D49918, D49918 ITEM 5, A49531-2. Substitute compatibility should be verified for your specific system.
What is the NSN for A49531-2MFD?
A49531-2MFD is cataloged in the U.S. Government catalog under NSN 4820-01-169-1977. This indicates validated use in U.S. government and defense supply chains.
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