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D50859 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

D50859: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY FLOW CONTROL DEVICE, connection_type: UNTHREADED INTERNAL TUBE ALL ENDS, connection_style: SOCKET WITH BRAZING RING (TUBE) ALL ENDS, special_features: THE PART CHANGED ON THIS VALVE WAS THE SPRING; FROM INCONEL TO MONEL. THE P/N FOR THE MONEL SPRING IS A52154MFF., style_designator: ANGLE, disk_loading_method: SPRING.

This part is cataloged in the U.S. Government catalog under NSN 4820-01-287-4673, 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
D50859
NSN: 4820-01-287-4673
NIINs: 012874673, 014559124
FSC: 4820 — Valves, Nonpowered
CAGE: 11859 — HUNT VALVE COMPANY, INC. (USA)
SPECIFICATIONS
materialNICKEL ALLOY FLOW CONTROL DEVICE
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
connection_styleSOCKET WITH BRAZING RING (TUBE) ALL ENDS
special_featuresTHE PART CHANGED ON THIS VALVE WAS THE SPRING; FROM INCONEL TO MONEL. THE P/N FOR THE MONEL SPRING IS A52154MFF.
style_designatorANGLE
disk_loading_methodSPRING
flow_control_deviceDISK
valve_operation_methodAUTOMATIC
end_item_identificationWEAPON CODE TH; STRATEGIC SEALIFT CONVERSION SHIPS CLASS
adjustable_pressure_range+27.0 TO 33.0 POUNDS PER SQUARE INCH LBS
nominal_outside_diameter_tube_accommodated1.000 INCHES ALL ENDS IN
NSN4820-01-287-4673
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D50859 · 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: SOCKET WITH BRAZING RING (TUBE) ALL ENDS
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: ANGLE
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.000 INCHES ALL ENDS IN
•
ADJUSTABLE PRESSURE RANGE: +27.0 TO 33.0 POUNDS PER SQUARE INCH LBS
•
DISK LOADING METHOD: SPRING
•
MATERIAL: BRONZE BODY
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
CONNECTION STYLESOCKET WITH BRAZING RING (TUBE) ALL ENDS
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
STYLE DESIGNATORANGLE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES ALL ENDS IN
ADJUSTABLE PRESSURE RANGE+27.0 TO 33.0 POUNDS PER SQUARE INCH LBS
DISK LOADING METHODSPRING
MATERIALBRONZE BODY
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALNICKEL ALLOY SEAT
SUBSTITUTES & CROSS-REFERENCES 2
R10AF1F108-BM3Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
BAMAA04IEEReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D50859?
D50859 is a VALVE,SAFETY RELIEF.
What parts can replace D50859?
There are 2 known substitutes for D50859: R10AF1F108-BM3, BAMAA04IEE. Substitute compatibility should be verified for your specific system.
What is the NSN for D50859?
D50859 is cataloged in the U.S. Government catalog under NSN 4820-01-287-4673. This indicates validated use in U.S. government and defense supply chains.
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