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565919 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

565919: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: ALUMINUM BODY, flow_control_device: POPPET, nominal_thread_size: 0.875 INCHES FIRST END IN, maximum_operating_temp: 248.0 FAHRENHEIT FIRST RESPONSE DEGF, valve_operation_method: AIR. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-476-3203, 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
565919
NSN: 4820-01-476-3203
FSC: 4820 — Valves, Nonpowered
CAGE: 1HUP7 — VICKERS INC CAROL STREAM PLANT (USA)
SPECIFICATIONS
materialALUMINUM BODY
flow_control_devicePOPPET
nominal_thread_size0.875 INCHES FIRST END IN
maximum_operating_temp248.0 FAHRENHEIT FIRST RESPONSE DEGF
valve_operation_methodAIR
NSN4820-01-476-3203
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 565919 · 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
•
CONNECTION TYPE: THREADED CARTRIDGE ALL ENDS
•
STYLE DESIGNATOR: SCREW-IN CARTRIDGE
•
NOMINAL THREAD SIZE: 0.875 INCHES FIRST END IN
•
MAXIMUM OPERATING TEMP: -40.0 FAHRENHEIT SECOND RESPONSE DEGF
•
MATERIAL: ALUMINUM BODY
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
CONNECTION TYPETHREADED CARTRIDGE ALL ENDS
STYLE DESIGNATORSCREW-IN CARTRIDGE
NOMINAL THREAD SIZE0.875 INCHES FIRST END IN
MAXIMUM OPERATING TEMP-40.0 FAHRENHEIT SECOND RESPONSE DEGF
MAXIMUM OPERATING TEMP248.0 FAHRENHEIT FIRST RESPONSE DEGF
SPECIAL FEATURESFLUIDS,ALL GERERAL PURPOSE HYDRAULIC FLUIDS; WEIGHT CARTRIDGE ONLY, 0.48 LBS; FILTRATION, CLEANLINESS CODE 18/16/13; REVERSE FREE FLOW CHECK, 45 PSI; TEMP RANGE, M40 TO P248 F LBS
MATERIALALUMINUM BODY
VALVE OPERATION METHODAIR
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 1
RV2-10-I-0-50Reference 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 565919?
565919 is a VALVE,SAFETY RELIEF.
What parts can replace 565919?
There is 1 known substitute for 565919: RV2-10-I-0-50. Substitute compatibility should be verified for your specific system.
What is the NSN for 565919?
565919 is cataloged in the U.S. Government catalog under NSN 4820-01-476-3203. 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.