PartsTable
Technical Data Sheet

1 1/2X2-40A — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1 1/2X2-40A: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, opening_pressure_setting: 12.0 POUNDS PER SQUARE INCH LBS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-136-2013, 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
1 1/2X2-40A
NSN: 4820-01-136-2013
FSC: 4820 — Valves, Nonpowered
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
opening_pressure_setting12.0 POUNDS PER SQUARE INCH LBS
NSN4820-01-136-2013
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1 1/2X2-40A · 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
•
MATERIAL: COPPER ALLOY OVERALL
•
OPENING PRESSURE SETTING: 12.0 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS
MATERIALCOPPER ALLOY OVERALL
OPENING PRESSURE SETTING12.0 POUNDS PER SQUARE INCH LBS
SUBSTITUTES & CROSS-REFERENCES 1
MDL 40-AReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1 1/2X2-40A?
1 1/2X2-40A is a VALVE,SAFETY RELIEF.
What parts can replace 1 1/2X2-40A?
There is 1 known substitute for 1 1/2X2-40A: MDL 40-A. Substitute compatibility should be verified for your specific system.
What is the NSN for 1 1/2X2-40A?
1 1/2X2-40A is cataloged in the U.S. Government catalog under NSN 4820-01-136-2013. 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.