7M666D2-30 — VALVE,SAFETY RELIEF

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

7M666D2-30: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: ALUMINUM BODY, connection_type: THREADED EXTERNAL PIPE FIRST END, connection_style: PLAIN,OPTIONAL END(PIPE) SECOND END, style_designator: STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY., thread_direction: RIGHT-HAND ALL ENDS, operating_pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-420-8501, 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

7M666D2-30

NSN: 4820-01-420-8501
FSC: 4820 — Valves, Nonpowered
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

material	ALUMINUM BODY
connection_type	THREADED EXTERNAL PIPE FIRST END
connection_style	PLAIN,OPTIONAL END(PIPE) SECOND END
style_designator	STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
thread_direction	RIGHT-HAND ALL ENDS
operating_pressure	200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_method	SPRING
flow_control_device	POPPET
nominal_thread_size	0.250 INCHES ALL ENDS IN
maximum_operating_temp	250.0 FAHRENHEIT SINGLE RESPONSE DEGF
minimum_operating_temp	-40.0 FAHRENHEIT DEGF
valve_operation_method	AUTOMATIC
NSN	4820-01-420-8501

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: POPPET

•

CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) SECOND END

•

MINIMUM OPERATING TEMP: -40.0 FAHRENHEIT DEGF

•

CONNECTION TYPE: THREADED INTERNAL PIPE SECOND END

•

STYLE DESIGNATOR: STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.

•

OPERATING PRESSURE: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	POPPET
CONNECTION STYLE	PLAIN,OPTIONAL END(PIPE) SECOND END
CONNECTION STYLE	PLAIN (PIPE) FIRST END
MINIMUM OPERATING TEMP	-40.0 FAHRENHEIT DEGF
CONNECTION TYPE	THREADED INTERNAL PIPE SECOND END
CONNECTION TYPE	THREADED EXTERNAL PIPE FIRST END
STYLE DESIGNATOR	STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
OPERATING PRESSURE	200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD DIRECTION	RIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE	0.250 INCHES ALL ENDS IN

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 2

559A-4MP-30Reference document

Same NSN cross-reference

Reference document — Secondary reference

559A-2MP-30Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 7M666D2-30?

7M666D2-30 is a VALVE,SAFETY RELIEF.

What parts can replace 7M666D2-30?

There are 2 known substitutes for 7M666D2-30: 559A-4MP-30, 559A-2MP-30. Substitute compatibility should be verified for your specific system.

What is the NSN for 7M666D2-30?

7M666D2-30 is cataloged in the U.S. Government catalog under NSN 4820-01-420-8501. This indicates validated use in U.S. government and defense supply chains.

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