D55A-4D-5 — VALVE,SAFETY RELIEF

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

D55A-4D-5: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: PLAIN (TUBE) ALL ENDS, style_designator: STRAIGHT THRU W/BAFFLE, thread_direction: RIGHT-HAND ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-922-1360, 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

D55A-4D-5

NSN: 4820-00-922-1360
FSC: 4820 — Valves, Nonpowered
CAGE: 91816 — CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC (USA)

SPECIFICATIONS

material	ALUMINUM ALLOY OVERALL
thread_class	3A ALL ENDS A
connection_type	THREADED EXTERNAL TUBE ALL ENDS
connection_style	PLAIN (TUBE) ALL ENDS
style_designator	STRAIGHT THRU W/BAFFLE
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	0.438 INCHES ALL ENDS IN
maximum_operating_temp	280.0 FAHRENHEIT SINGLE RESPONSE DEGF
minimum_operating_temp	-40.0 FAHRENHEIT DEGF
NSN	4820-00-922-1360

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: POPPET

•

FURNISHED ITEMS AND QUANTITY: 1 DEFLECTOR CAP

•

CONNECTION STYLE: PLAIN (TUBE) ALL ENDS

•

MINIMUM OPERATING TEMP: -40.0 FAHRENHEIT DEGF

•

CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS

•

STYLE DESIGNATOR: STRAIGHT THRU W/BAFFLE

•

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

•

THREAD DIRECTION: RIGHT-HAND ALL ENDS

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	POPPET
FURNISHED ITEMS AND QUANTITY	1 DEFLECTOR CAP
CONNECTION STYLE	PLAIN (TUBE) ALL ENDS
MINIMUM OPERATING TEMP	-40.0 FAHRENHEIT DEGF
CONNECTION TYPE	THREADED EXTERNAL TUBE ALL ENDS
STYLE DESIGNATOR	STRAIGHT THRU W/BAFFLE
OPERATING PRESSURE	200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD DIRECTION	RIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE	0.438 INCHES ALL ENDS IN
MAXIMUM OPERATING TEMP	280.0 FAHRENHEIT SINGLE RESPONSE DEGF

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

247AS34-537-001Same 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 D55A-4D-5?

D55A-4D-5 is a VALVE,SAFETY RELIEF.

What parts can replace D55A-4D-5?

There is 1 known substitute for D55A-4D-5: 247AS34-537-001. Substitute compatibility should be verified for your specific system.

What is the NSN for D55A-4D-5?

D55A-4D-5 is cataloged in the U.S. Government catalog under NSN 4820-00-922-1360. This indicates validated use in U.S. government and defense supply chains.

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