A774 — VALVE,SAFETY RELIEF

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

A774: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 BODY, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARED (TUBE) ALL ENDS, style_designator: ANGLE, thread_direction: RIGHT-HAND ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-445-4695, 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

A774

NSN: 4820-01-445-4695
FSC: 4820 — Valves, Nonpowered
CAGE: 06239 — AUSCO INC (USA)

SPECIFICATIONS

material	STEEL COMP 303 BODY
thread_class	2A ALL ENDS A
connection_type	THREADED EXTERNAL TUBE ALL ENDS
connection_style	FLARED (TUBE) ALL ENDS
style_designator	ANGLE
thread_direction	RIGHT-HAND ALL ENDS
surface_treatment	PASSIVATE LOCATION NOT OTHERWISE SPECIFIED
flow_control_device	BALL
nominal_thread_size	0.250 INCHES ALL ENDS IN
valve_operation_method	AUTOMATIC
end_item_identification	HELICOPTER,SEASPRITE H-2
media_for_which_designed	FUEL/OIL, HYDROCARBON SINGLE RESPONSE
NSN	4820-01-445-4695

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: BALL

•

CONNECTION STYLE: FLARED (TUBE) ALL ENDS

•

CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS

•

STYLE DESIGNATOR: ANGLE

•

ADJUSTABLE PRESSURE RANGE: +7.5 TO 15.0 POUNDS PER SQUARE INCH LBS

•

THREAD DIRECTION: RIGHT-HAND ALL ENDS

•

NOMINAL THREAD SIZE: 0.250 INCHES ALL ENDS IN

•

SURFACE TREATMENT: PASSIVATE LOCATION NOT OTHERWISE SPECIFIED

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	BALL
CONNECTION STYLE	FLARED (TUBE) ALL ENDS
CONNECTION TYPE	THREADED EXTERNAL TUBE ALL ENDS
STYLE DESIGNATOR	ANGLE
ADJUSTABLE PRESSURE RANGE	+7.5 TO 15.0 POUNDS PER SQUARE INCH LBS
THREAD DIRECTION	RIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE	0.250 INCHES ALL ENDS IN
SURFACE TREATMENT	PASSIVATE LOCATION NOT OTHERWISE SPECIFIED
MEDIA FOR WHICH DESIGNED	FUEL/OIL, HYDROCARBON SINGLE RESPONSE
THREAD CLASS	2A ALL ENDS A

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

4820PL0143975Reference document

Same NSN cross-reference

Reference document — Informative reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation

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FREQUENTLY ASKED QUESTIONS

What is A774?

A774 is a VALVE,SAFETY RELIEF.

What parts can replace A774?

There is 1 known substitute for A774: 4820PL0143975. Substitute compatibility should be verified for your specific system.

What is the NSN for A774?

A774 is cataloged in the U.S. Government catalog under NSN 4820-01-445-4695. This indicates validated use in U.S. government and defense supply chains.

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