Model: 1580

Safety Relief Valve

Properties:

Thread Class

3a 2nd end

Thread Class

3b 1st end

Thread Direction

Right-hand 2nd end

Thread Direction

Right-hand 1st end

Flow Control Device

Disk

Disk Loading Method

Spring

Valve Discharge Flow Rate

7.0 gallons per minute

Valve Operation Method

Automatic

Connection Type

Threaded external tube 2nd end

Connection Type

Threaded internal tube 1st end

Features Provided

Pressure tight outlet side

Thready Qty Per Inch (tpi)

16 2nd end

Thready Qty Per Inch (tpi)

18 1st end

Adjustable Pressure Range

+1400.0/+2300.0 pounds per square inch

Adjustable Pressure Range

+1400.0 to 2300.0 pounds per square inch

Maximum Operating Pressure

3000.0 pounds per square inch single response

Thread Size

0.562 inches 1st end

Thread Size

0.875 inches 2nd end

Media For Which Designed

Fuel/oil, hydrocarbon single response

Thread Series Designator

Un 2nd end

Thread Series Designator

Unf 1st end

NSN

4820-00-728-6504

Part Number

1580

Description

Valve,safety Relief

CAGE

06177

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

Part 1580 NSN 4820-00-728-6504

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05488

FIIG:

A046B0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.3000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

127220

UFC:

64490

LTL:

77.5

LCL:

77.5

WCC:

594

TCC:

SHC:

ACC:

Equipment for Aircraft

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Schedule B and Export

Schedule B: 8481400000
SITC: 74740
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Safety or relief valves