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CST31-5 — DISK NUT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

CST31-5: DISK NUT,VALVE.

The DISK NUT,VALVE is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: NICKEL COPPER,QQ-N-288. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-201-6714, 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
CST31-5
NSN: 4820-01-201-6714
FSC: 4820 — Valves, Nonpowered
CAGE: 50831 — JOHNSON CONTROLS INC CONTROL PRODUCTS DIV (USA)
SPECIFICATIONS
general_characteristics_item_descriptionNICKEL COPPER,QQ-N-288
NSN4820-01-201-6714
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: CST31-5 · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: NICKEL COPPER,QQ-N-288
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONNICKEL COPPER,QQ-N-288
SUBSTITUTES & CROSS-REFERENCES 2
PLR-V43-6 ITEM 8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PLR-V43-6Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 CST31-5?
CST31-5 is a DISK NUT,VALVE.
What parts can replace CST31-5?
There are 2 known substitutes for CST31-5: PLR-V43-6 ITEM 8, PLR-V43-6. Substitute compatibility should be verified for your specific system.
What is the NSN for CST31-5?
CST31-5 is cataloged in the U.S. Government catalog under NSN 4820-01-201-6714. 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.