Model: 174A

Safety Relief Valve

Properties:

Pipe Size Accommodated

1.000 inches all ends

Thread Direction

Right-hand all ends

Flow Control Device

Disk

Bonnet Type

Inside screw

Bonnet Attachment Method

Threaded

Disk Loading Method

Spring

Connection Style

G9 plain, optional en (pipe) all ends

Connection Style

Plain, optional en (pipe) all ends

Valve Operation Method

Manual

Connection Type

Threaded internal pipe all ends

Features Provided

Valve stem lock shield

Thread Size

1.000 inches all ends

Opening Pressure Setting

75.0 pounds per square inch

Material

Copper alloy

Style Designator

Angle

Thread Series Designator

Npt 1st end

Reference Number Differentiating Characteristics

As differentiated by pressure setting and size

NSN

4820-00-057-7231

Part Number

174A

Description

Valve,safety Relief

CAGE

79227

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 174A NSN 4820-00-057-7231

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:

2.1000lbs

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:

WCC:

576

TCC:

SHC:

ACC:

Construction Materials

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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