8556 3.50IN. — VALVE,CHECK

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

8556 3.50IN.: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE, valve_size: 3.000 INCHES IN, connection_type: FLANGE ALL ENDS, special_features: SWING CHECK TYPE, style_designator: STRAIGHT THRU, mounting_position: HORIZONTAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-233-8945, 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

8556 3.50IN.

NSN: 4820-01-233-8945
FSC: 4820 — Valves, Nonpowered
CAGE: 79342 — WILLIAM E WILLIAMS VALVE CORP (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING FLOW CONTROL DEVICE
valve_size	3.000 INCHES IN
connection_type	FLANGE ALL ENDS
special_features	SWING CHECK TYPE
style_designator	STRAIGHT THRU
mounting_position	HORIZONTAL
disk_loading_method	SPRING
flow_control_device	DISK
valve_operation_method	AUTOMATIC
NSN	4820-01-233-8945

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: DISK

•

MOUNTING POSITION: HORIZONTAL

•

CONNECTION TYPE: FLANGE ALL ENDS

•

STYLE DESIGNATOR: STRAIGHT THRU

•

VALVE SIZE: 3.000 INCHES IN

•

DISK LOADING METHOD: SPRING

•

MATERIAL: STEEL CORROSION RESISTING FLOW CONTROL DEVICE

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	DISK
MOUNTING POSITION	HORIZONTAL
CONNECTION TYPE	FLANGE ALL ENDS
STYLE DESIGNATOR	STRAIGHT THRU
VALVE SIZE	3.000 INCHES IN
DISK LOADING METHOD	SPRING
SPECIAL FEATURES	SWING CHECK TYPE
MATERIAL	STEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIAL	STEEL CORROSION RESISTING SEAT
MATERIAL	STEEL CORROSION RESISTING BODY

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

152W-3 BWLD 3.5Reference document

Same NSN cross-reference

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

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 8556 3.50IN.?

8556 3.50IN. is a VALVE,CHECK.

What parts can replace 8556 3.50IN.?

There is 1 known substitute for 8556 3.50IN.: 152W-3 BWLD 3.5. Substitute compatibility should be verified for your specific system.

What is the NSN for 8556 3.50IN.?

8556 3.50IN. is cataloged in the U.S. Government catalog under NSN 4820-01-233-8945. This indicates validated use in U.S. government and defense supply chains.

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8556 3.50IN. — VALVE,CHECK

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