493-8D1-2 — VALVE,CHECK

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

493-8D1-2: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND STEEL COMP 303 FLOW CONTROL DEVICE, thread_class: 3B FIRST END, connection_style: GASKET SEAL (BOSS) FIRST END, special_features: 2.0 PSI VALVE OPENING PRESSURE, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-125-3073, 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

493-8D1-2

NSN: 4820-00-125-3073
FSC: 4820 — Valves, Nonpowered
CAGE: 86768 — TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC BUSINESS UNIT (USA)

SPECIFICATIONS

material	STEEL COMP 304 AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND STEEL COMP 303 FLOW CONTROL DEVICE
thread_class	3B FIRST END
connection_style	GASKET SEAL (BOSS) FIRST END
special_features	2.0 PSI VALVE OPENING PRESSURE
style_designator	STRAIGHT THRU
thread_direction	RIGHT-HAND FIRST END
surface_treatment	ANODIZE
operating_pressure	3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_method	SPRING
flow_control_device	POPPET
nominal_thread_size	0.750 INCHES FIRST END IN
maximum_operating_temp	450.0 FAHRENHEIT SINGLE RESPONSE DEGF
NSN	4820-00-125-3073

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: POPPET

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE

•

CONNECTION STYLE: GASKET SEAL (BOSS) FIRST END

•

STYLE DESIGNATOR: STRAIGHT THRU

•

MATERIAL DOCUMENT AND CLASSIFICATION: AISI 304/SAE 30304 ASSN STD 1ST MATERIAL RESPONSE FLOW CONTROL DEVICE

•

NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES FIRST END IN

•

OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS

•

THREAD DIRECTION: RIGHT-HAND FIRST END

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	POPPET
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE
CONNECTION STYLE	GASKET SEAL (BOSS) FIRST END
STYLE DESIGNATOR	STRAIGHT THRU
MATERIAL DOCUMENT AND CLASSIFICATION	AISI 304/SAE 30304 ASSN STD 1ST MATERIAL RESPONSE FLOW CONTROL DEVICE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	0.500 INCHES FIRST END IN
OPERATING PRESSURE	3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD DIRECTION	RIGHT-HAND FIRST END
NOMINAL THREAD SIZE	0.750 INCHES FIRST END IN
MAXIMUM OPERATING TEMP	450.0 FAHRENHEIT SINGLE RESPONSE DEGF

SUBSTITUTES & CROSS-REFERENCES 1

9-1862-4Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 493-8D1-2?

493-8D1-2 is a VALVE,CHECK.

What parts can replace 493-8D1-2?

There is 1 known substitute for 493-8D1-2: 9-1862-4. Substitute compatibility should be verified for your specific system.

What is the NSN for 493-8D1-2?

493-8D1-2 is cataloged in the U.S. Government catalog under NSN 4820-00-125-3073. This indicates validated use in U.S. government and defense supply chains.

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