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H7809 — DIAPHRAGM,VALVE,FLAT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

H7809: DIAPHRAGM,VALVE,FLAT.

The DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, outside_diameter: 4.000 INCHES NOMINAL IN, special_features: W/CENTER SEAT AND GUIDE, style_designator: FLAT, material_thickness: 0.006 INCHES NOMINAL IN, center_hole_diameter: 0.503 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-756-7523, 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
H7809
NSN: 4820-00-756-7523
FSC: 4820 — Valves, Nonpowered
CAGE: 21476 — RICHARDS INDUSTRIES VALVE GROUP JORDAN VALVE DIV (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
outside_diameter4.000 INCHES NOMINAL IN
special_featuresW/CENTER SEAT AND GUIDE
style_designatorFLAT
material_thickness0.006 INCHES NOMINAL IN
center_hole_diameter0.503 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN
NSN4820-00-756-7523
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: H7809 · 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: 4.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT
•
MATERIAL THICKNESS: 0.006 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.503 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER4.000 INCHES NOMINAL IN
STYLE DESIGNATORFLAT
MATERIAL THICKNESS0.006 INCHES NOMINAL IN
SPECIAL FEATURESW/CENTER SEAT AND GUIDE
CENTER HOLE DIAMETER0.503 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES 9
147 ITEM 10-13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
147 ITEM 10 TO 13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
147 ITEM 10,11,12 AND 13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
X5008/12/147 ITEM 10Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
X5008/12/147/10-13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
X5008/12/147 ITEM 10-13Same 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 H7809?
H7809 is a DIAPHRAGM,VALVE,FLAT.
What parts can replace H7809?
There are 9 known substitutes for H7809: 147 ITEM 10-13, 147 ITEM 10 TO 13, 147 ITEM 10,11,12 AND 13 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H7809?
H7809 is cataloged in the U.S. Government catalog under NSN 4820-00-756-7523. 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.