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8531-1-146 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

8531-1-146: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, taper_length: 3.035 INCHES NOMINAL IN, style_designator: SOLID WEDGE, taper_major_diameter: 1.480 INCHES NOMINAL IN, taper_minor_diameter: 0.765 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-613-5808, 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
8531-1-146
NSN: 4820-00-613-5808
FSC: 4820 — Valves, Nonpowered
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
materialSTEEL
taper_length3.035 INCHES NOMINAL IN
style_designatorSOLID WEDGE
taper_major_diameter1.480 INCHES NOMINAL IN
taper_minor_diameter0.765 INCHES NOMINAL IN
NSN4820-00-613-5808
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8531-1-146 · 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
•
TAPER MINOR DIAMETER: 0.765 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SOLID WEDGE
•
TAPER MAJOR DIAMETER: 1.480 INCHES NOMINAL IN
•
TAPER LENGTH: 3.035 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
TAPER MINOR DIAMETER0.765 INCHES NOMINAL IN
STYLE DESIGNATORSOLID WEDGE
TAPER MAJOR DIAMETER1.480 INCHES NOMINAL IN
TAPER LENGTH3.035 INCHES NOMINAL IN
MATERIALSTEEL
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 2
DWG85311Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
8531-001-122Reference 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 8531-1-146?
8531-1-146 is a DISK,VALVE.
What parts can replace 8531-1-146?
There are 2 known substitutes for 8531-1-146: DWG85311, 8531-001-122. Substitute compatibility should be verified for your specific system.
What is the NSN for 8531-1-146?
8531-1-146 is cataloged in the U.S. Government catalog under NSN 4820-00-613-5808. 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.