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2820185 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

2820185: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, connection_style: PLAIN (PIPE) FIRST END, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND FIRST END, disk_loading_method: SPRING, flow_control_device: DISK. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-148-8665, 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
2820185
NSN: 4820-00-148-8665
FSC: 4820 — Valves, Nonpowered
CAGE: 23892 — LOCKHEED MARTIN SERVICES, LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
connection_stylePLAIN (PIPE) FIRST END
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND FIRST END
disk_loading_methodSPRING
flow_control_deviceDISK
nominal_thread_size0.250 INCHES FIRST END IN
maximum_operating_temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
minimum_operating_temp-65.0 FAHRENHEIT DEGF
valve_operation_methodAUTOMATIC
media_for_which_designedAIR FIRST RESPONSE
opening_pressure_setting20.0 POUNDS PER SQUARE INCH LBS
NSN4820-00-148-8665
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2820185 · 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: DISK
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
•
MINIMUM OPERATING TEMP: -65.0 FAHRENHEIT DEGF
•
STYLE DESIGNATOR: STRAIGHT THRU
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
NOMINAL THREAD SIZE: 0.250 INCHES FIRST END IN
•
MAXIMUM OPERATING TEMP: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
DISK LOADING METHOD: SPRING
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
CONNECTION STYLEPLAIN (PIPE) FIRST END
MINIMUM OPERATING TEMP-65.0 FAHRENHEIT DEGF
STYLE DESIGNATORSTRAIGHT THRU
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE0.250 INCHES FIRST END IN
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE DEGF
DISK LOADING METHODSPRING
MEDIA FOR WHICH DESIGNEDHELIUM SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
SUBSTITUTES & CROSS-REFERENCES 2
1944-001Reference document
Same NSN cross-reference
Reference document — Secondary reference
1944-1-000Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 2820185?
2820185 is a VALVE,SAFETY RELIEF.
What parts can replace 2820185?
There are 2 known substitutes for 2820185: 1944-001, 1944-1-000. Substitute compatibility should be verified for your specific system.
What is the NSN for 2820185?
2820185 is cataloged in the U.S. Government catalog under NSN 4820-00-148-8665. This indicates validated use in U.S. government and defense supply chains.
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