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D19146 — DIAPHRAGM,VALVE,FLAT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

D19146: DIAPHRAGM,VALVE,FLAT.

The DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, hole_diameter: 0.500 INCHES NOMINAL IN, outside_diameter: 8.250 INCHES NOMINAL IN, style_designator: FLAT, bolt_hole_quantity: 12, material_thickness: 0.120 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-036-0671, 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
D19146
NSN: 4820-00-036-0671
FSC: 4820 — Valves, Nonpowered
CAGE: 11859 — HUNT VALVE COMPANY, INC. (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
hole_diameter0.500 INCHES NOMINAL IN
outside_diameter8.250 INCHES NOMINAL IN
style_designatorFLAT
bolt_hole_quantity12
material_thickness0.120 INCHES NOMINAL IN
bolt_circle_diameter6.625 INCHES NOMINAL IN
NSN4820-00-036-0671
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D19146 · 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: 8.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT
•
MATERIAL THICKNESS: 0.120 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 12
•
BOLT CIRCLE DIAMETER: 6.625 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
•
HOLE DIAMETER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER8.250 INCHES NOMINAL IN
STYLE DESIGNATORFLAT
MATERIAL THICKNESS0.120 INCHES NOMINAL IN
BOLT HOLE QUANTITY12
BOLT CIRCLE DIAMETER6.625 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
HOLE DIAMETER0.500 INCHES NOMINAL IN
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 1
D19146VReference document
Same NSN cross-reference
Reference document — Secondary reference
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 D19146?
D19146 is a DIAPHRAGM,VALVE,FLAT.
What parts can replace D19146?
There is 1 known substitute for D19146: D19146V. Substitute compatibility should be verified for your specific system.
What is the NSN for D19146?
D19146 is cataloged in the U.S. Government catalog under NSN 4820-00-036-0671. 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.