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31M-46 — DIAPHRAGM,VALVE,FLAT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

31M-46: DIAPHRAGM,VALVE,FLAT.

The DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER, pressure_rating: 235.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS, style_designator: FLAT, media_for_which_designed: WATER. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-283-9779, 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
31M-46
NSN: 4820-01-283-9779
FSC: 4820 — Valves, Nonpowered
CAGE: 21013 — METREX VALVE CORP. DBA METREX VALVE CORP (USA)
SPECIFICATIONS
materialRUBBER
pressure_rating235.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
style_designatorFLAT
media_for_which_designedWATER
NSN4820-01-283-9779
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 31M-46 · 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
•
PRESSURE RATING: 235.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
•
STYLE DESIGNATOR: FLAT
•
MEDIA FOR WHICH DESIGNED: WATER
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
PRESSURE RATING235.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
STYLE DESIGNATORFLAT
MEDIA FOR WHICH DESIGNEDWATER
MATERIALRUBBER
SUBSTITUTES & CROSS-REFERENCES 2
M900P-1215UE-2WReference document
Same NSN cross-reference
Reference document — Drawing number reference only
M900P-1215UE-2W ITEM 21Reference 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 31M-46?
31M-46 is a DIAPHRAGM,VALVE,FLAT.
What parts can replace 31M-46?
There are 2 known substitutes for 31M-46: M900P-1215UE-2W, M900P-1215UE-2W ITEM 21. Substitute compatibility should be verified for your specific system.
What is the NSN for 31M-46?
31M-46 is cataloged in the U.S. Government catalog under NSN 4820-01-283-9779. 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.