D50559 — VALVE,SAFETY RELIEF

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

D50559: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY FLOW CONTROL DEVICE, valve_size: 2.500 INCHES IN, bonnet_type: INSIDE SCREW, flange_shape: ROUND WITH HOLES ALL ENDS, overall_length: 14.750 INCHES NOMINAL IN, connection_type: FLANGE ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-258-2698, 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

D50559

NSN: 4820-01-258-2698
NIINs: 012582698, 012582767, 013826510
FSC: 4820 — Valves, Nonpowered
CAGE: 34889 — HUNT VALVE COMPANY INC DBA UNION FLONETICS (USA)

SPECIFICATIONS

material	NICKEL ALLOY FLOW CONTROL DEVICE
valve_size	2.500 INCHES IN
bonnet_type	INSIDE SCREW
flange_shape	ROUND WITH HOLES ALL ENDS
overall_length	14.750 INCHES NOMINAL IN
connection_type	FLANGE ALL ENDS
style_designator	ANGLE FLANGED ENDS
nominal_thickness	0.500 INCHES ALL ENDS IN
bolt_hole_quantity	6 ALL ENDS
flange_face_design	PLAIN ALL ENDS
disk_loading_method	SPRING
flow_control_device	DISK
NSN	4820-01-258-2698

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: DISK

•

FLANGE SHAPE: ROUND WITH HOLES ALL ENDS

•

FURNISHED ITEMS AND QUANTITY: 1 LEVER

•

FLANGE FACE DESIGN: PLAIN ALL ENDS

•

BOLT CIRCLE NOMINAL DIAMETER: 5.000 INCHES ALL ENDS IN

•

CONNECTION TYPE: FLANGE ALL ENDS

•

STYLE DESIGNATOR: ANGLE FLANGED ENDS

•

MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	DISK
FLANGE SHAPE	ROUND WITH HOLES ALL ENDS
FURNISHED ITEMS AND QUANTITY	1 LEVER
FLANGE FACE DESIGN	PLAIN ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER	5.000 INCHES ALL ENDS IN
CONNECTION TYPE	FLANGE ALL ENDS
STYLE DESIGNATOR	ANGLE FLANGED ENDS
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT

SUBSTITUTES & CROSS-REFERENCES 2

D50559 AND R10AK3K3AE-BM3Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

R10AK3K3AE-BM3Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

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 D50559?

D50559 is a VALVE,SAFETY RELIEF.

What parts can replace D50559?

There are 2 known substitutes for D50559: D50559 AND R10AK3K3AE-BM3, R10AK3K3AE-BM3. Substitute compatibility should be verified for your specific system.

What is the NSN for D50559?

D50559 is cataloged in the U.S. Government catalog under NSN 4820-01-258-2698. This indicates validated use in U.S. government and defense supply chains.

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D50559 — VALVE,SAFETY RELIEF

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