Model: A51H9190-1

Safety Relief Valve

Properties:

Thread Class

3a 1st end

Thread Class

3b 2nd end

Thread Direction

Right-hand 2nd end

Thread Direction

Right-hand 1st end

Flow Control Device

Poppet

Disk Loading Method

Spring

Valve Discharge Flow Rate

2.0 gallons per minute

Connection Style

G45 flareless (tube) 1st end

Connection Style

Flareless (tube) 1st end

Valve Operation Method

Automatic

Connection Type

Threaded external tube 1st end

Connection Type

Threaded internal boss 2nd end

Features Provided

Valve stem lock shield and pressure tight outlet side

Thready Qty Per Inch (tpi)

18 2nd end

Thready Qty Per Inch (tpi)

18 1st end

Maximum Operating Pressure

3000.0 pounds per square inch single response

Thread Size

0.562 inches 1st end

Thread Size

0.562 inches 2nd end

Seat Angle

18.0 degrees 1st end

Seat Angle

37.0 degrees 2nd end

Outside Diameter Tube Accommodated

0.375 inches 2nd end

Outside Diameter Tube Accommodated

0.375 inches 1st end

Media For Which Designed

Fuel/oil, hydrocarbon single response

Surface Treatment

Paint

Thread Series Designator

Unjf 2nd end

Thread Series Designator

Unjf 1st end

NSN

4820-00-328-8180

Part Number

A51H9190-1

Description

Valve,safety Relief

CAGE

61174

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 A51H9190-1 NSN 4820-00-328-8180

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:

0.1000lbs

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:

Trailers/Vehicles

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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