645B-2-8-2 — VALVE,SAFETY RELIEF

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

645B-2-8-2: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEAT, thread_class: 3B ALL ENDS, connection_type: THREADED INTERNAL BOSS ALL ENDS, connection_style: GASKET SEAL(BOSS) ALL ENDS, style_designator: ANGLE, thread_direction: RIGHT-HAND ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-263-9474, 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

645B-2-8-2

NSN: 4820-01-263-9474
FSC: 4820 — Valves, Nonpowered
CAGE: 09990 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV HYDRAULIC VALVE DIVISION (USA)

SPECIFICATIONS

material	RUBBER SYNTHETIC SEAT
thread_class	3B ALL ENDS
connection_type	THREADED INTERNAL BOSS ALL ENDS
connection_style	GASKET SEAL(BOSS) ALL ENDS
style_designator	ANGLE
thread_direction	RIGHT-HAND ALL ENDS
operating_pressure	3600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_device	POPPET
nominal_thread_size	0.750 INCHES ALL ENDS IN
maximum_operating_temp	225.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_method	AUTOMATIC
media_for_which_designed	AIR FIRST RESPONSE
NSN	4820-01-263-9474

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: POPPET

•

CONNECTION STYLE: GASKET SEAL(BOSS) ALL ENDS

•

CONNECTION TYPE: THREADED INTERNAL BOSS ALL ENDS

•

STYLE DESIGNATOR: ANGLE

•

OPERATING PRESSURE: 3600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS

•

ADJUSTABLE PRESSURE RANGE: +10.0 TO 50.0 POUNDS PER SQUARE INCH LBS

•

THREAD DIRECTION: RIGHT-HAND ALL ENDS

•

NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	POPPET
CONNECTION STYLE	GASKET SEAL(BOSS) ALL ENDS
CONNECTION TYPE	THREADED INTERNAL BOSS ALL ENDS
STYLE DESIGNATOR	ANGLE
OPERATING PRESSURE	3600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
ADJUSTABLE PRESSURE RANGE	+10.0 TO 50.0 POUNDS PER SQUARE INCH LBS
THREAD DIRECTION	RIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE	0.750 INCHES ALL ENDS IN
MAXIMUM OPERATING TEMP	225.0 FAHRENHEIT SINGLE RESPONSE DEGF
MEDIA FOR WHICH DESIGNED	HYDRAULIC FLUID, MINERAL BASE SECOND RESPONSE

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

7-1063-8GReference document

Same NSN cross-reference

Reference document — Secondary reference

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 645B-2-8-2?

645B-2-8-2 is a VALVE,SAFETY RELIEF.

What parts can replace 645B-2-8-2?

There is 1 known substitute for 645B-2-8-2: 7-1063-8G. Substitute compatibility should be verified for your specific system.

What is the NSN for 645B-2-8-2?

645B-2-8-2 is cataloged in the U.S. Government catalog under NSN 4820-01-263-9474. This indicates validated use in U.S. government and defense supply chains.

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645B-2-8-2 — VALVE,SAFETY RELIEF

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