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31223172 — DIAPHRAGM,VALVE,FLAT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

31223172: DIAPHRAGM,VALVE,FLAT.

The DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER, outside_diameter: 6.000 INCHES NOMINAL IN, style_designator: FLAT, material_thickness: 0.127 INCHES NOMINAL IN, center_hole_diameter: 0.475 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-316-3976, 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
31223172
NSN: 4820-00-316-3976
FSC: 4820 — Valves, Nonpowered
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialRUBBER
outside_diameter6.000 INCHES NOMINAL IN
style_designatorFLAT
material_thickness0.127 INCHES NOMINAL IN
center_hole_diameter0.475 INCHES NOMINAL IN
NSN4820-00-316-3976
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 31223172 · 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: 6.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT
•
MATERIAL THICKNESS: 0.127 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.475 INCHES NOMINAL IN
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER6.000 INCHES NOMINAL IN
STYLE DESIGNATORFLAT
MATERIAL THICKNESS0.127 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.475 INCHES NOMINAL IN
MATERIALRUBBER
SUBSTITUTES & CROSS-REFERENCES 2
20G2002PC8Reference document
Same NSN cross-reference
Reference document — Secondary reference
12231-72Reference 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 31223172?
31223172 is a DIAPHRAGM,VALVE,FLAT.
What parts can replace 31223172?
There are 2 known substitutes for 31223172: 20G2002PC8, 12231-72. Substitute compatibility should be verified for your specific system.
What is the NSN for 31223172?
31223172 is cataloged in the U.S. Government catalog under NSN 4820-00-316-3976. 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.