647B-2-1/8-28 — VALVE,SAFETY RELIEF

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

647B-2-1/8-28: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: RUBBER SEAT, connection_type: THREADED EXTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: ANGLE, thread_direction: RIGHT-HAND ALL ENDS, surface_treatment: PASSIVATE LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-070-2459, 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

647B-2-1/8-28

NSN: 4820-01-070-2459
FSC: 4820 — Valves, Nonpowered
CAGE: 09990 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV HYDRAULIC VALVE DIVISION (USA)

SPECIFICATIONS

material	RUBBER SEAT
connection_type	THREADED EXTERNAL PIPE ALL ENDS
connection_style	PLAIN (PIPE) ALL ENDS
style_designator	ANGLE
thread_direction	RIGHT-HAND ALL ENDS
surface_treatment	PASSIVATE LOCATION NOT OTHERWISE SPECIFIED
disk_loading_method	SPRING
flow_control_device	POPPET
nominal_thread_size	0.125 INCHES ALL ENDS IN
maximum_operating_temp	225.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_method	AUTOMATIC
media_for_which_designed	AIR SINGLE RESPONSE
NSN	4820-01-070-2459

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: POPPET

•

CONNECTION STYLE: PLAIN (PIPE) ALL ENDS

•

CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS

•

STYLE DESIGNATOR: ANGLE

•

THREAD DIRECTION: RIGHT-HAND ALL ENDS

•

NOMINAL THREAD SIZE: 0.125 INCHES ALL ENDS IN

•

MAXIMUM OPERATING TEMP: 225.0 FAHRENHEIT SINGLE RESPONSE DEGF

•

DISK LOADING METHOD: SPRING

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	POPPET
CONNECTION STYLE	PLAIN (PIPE) ALL ENDS
CONNECTION TYPE	THREADED EXTERNAL PIPE ALL ENDS
STYLE DESIGNATOR	ANGLE
THREAD DIRECTION	RIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE	0.125 INCHES ALL ENDS IN
MAXIMUM OPERATING TEMP	225.0 FAHRENHEIT SINGLE RESPONSE DEGF
DISK LOADING METHOD	SPRING
SURFACE TREATMENT	PASSIVATE LOCATION NOT OTHERWISE SPECIFIED
MEDIA FOR WHICH DESIGNED	AIR SINGLE RESPONSE

SUBSTITUTES & CROSS-REFERENCES 2

563682Reference document

Same NSN cross-reference

Reference document — Secondary reference

647B-2-1/8-Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 647B-2-1/8-28?

647B-2-1/8-28 is a VALVE,SAFETY RELIEF.

What parts can replace 647B-2-1/8-28?

There are 2 known substitutes for 647B-2-1/8-28: 563682, 647B-2-1/8-. Substitute compatibility should be verified for your specific system.

What is the NSN for 647B-2-1/8-28?

647B-2-1/8-28 is cataloged in the U.S. Government catalog under NSN 4820-01-070-2459. This indicates validated use in U.S. government and defense supply chains.

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