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1806CSU — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1806CSU: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 STEM, bonnet_type: INSIDE SCREW, connection_type: UNTHREADED INTERNAL PIPE FIRST END, connection_style: STREAMLINED WITH ONE BRAZING RING FIRST END, style_designator: ANGLE, features_provided: PRESSURE TIGHT OUTLET SIDE. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-287-2454, 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
1806CSU
NSN: 4820-00-287-2454
NIINs: 002872454, 002890891
FSC: 4820 — Valves, Nonpowered
CAGE: 16497 — DRESSER, INC. DBA DRESSER EQUIPMENT GROUP DIV INDUSTRIAL VALVE OPERATIONS, DRESSE (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 STEM
bonnet_typeINSIDE SCREW
connection_typeUNTHREADED INTERNAL PIPE FIRST END
connection_styleSTREAMLINED WITH ONE BRAZING RING FIRST END
style_designatorANGLE
features_providedPRESSURE TIGHT OUTLET SIDE
operating_pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_devicePOPPET
maximum_operating_temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
bonnet_attachment_methodINTEGRAL
NSN4820-00-287-2454
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1806CSU · 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
•
FLOW CONTROL DEVICE: POPPET
•
RENEWABLE SEAT RING TYPE: THREADED
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.500 INCHES FIRST END IN
•
CONNECTION STYLE: STREAMLINED WITH ONE BRAZING RING FIRST END
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE FIRST END
•
STYLE DESIGNATOR: ANGLE
•
ADJUSTABLE PRESSURE RANGE: +104.0 TO 135.0 POUNDS PER SQUARE INCH LBS
•
FEATURES PROVIDED: PRESSURE TIGHT OUTLET SIDE
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
RENEWABLE SEAT RING TYPETHREADED
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES FIRST END IN
CONNECTION STYLESTREAMLINED WITH ONE BRAZING RING FIRST END
CONNECTION TYPEUNTHREADED INTERNAL PIPE FIRST END
STYLE DESIGNATORANGLE
ADJUSTABLE PRESSURE RANGE+104.0 TO 135.0 POUNDS PER SQUARE INCH LBS
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
NONDEFINITIVE SPEC/STD DATAA1 TYPE AND C CLASS
DISK LOADING METHODSPRING
SUBSTITUTES & CROSS-REFERENCES 2
5VAG72Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
D52UU-07Reference 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 1806CSU?
1806CSU is a VALVE,SAFETY RELIEF.
What parts can replace 1806CSU?
There are 2 known substitutes for 1806CSU: 5VAG72, D52UU-07. Substitute compatibility should be verified for your specific system.
What is the NSN for 1806CSU?
1806CSU is cataloged in the U.S. Government catalog under NSN 4820-00-287-2454. This indicates validated use in U.S. government and defense supply chains.
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