Model: ES9998-04

Safety Relief Valve

Properties:

Thread Class

3a 1st end

Thread Direction

Right-hand 1st end

Flow Control Device

Poppet

Maximum Operating Temp

260.0 degrees fahrenheit single response

Minimum Operating Temp

-70.0 degrees fahrenheit

End Application

Aircraf, hercules c-130

Connection Style

G42 flared (tube) 1st end

Valve Operation Method

Automatic

Connection Type

Threaded external tube 1st end

Adjustable Pressure Range

+99.8/+110.3 pounds per square inch

Maximum Operating Pressure

115.5 pounds per square inch single response

Thread Size

0.438 inches 1st end

Seat Angle

37.0 degrees 1st end

Material

Steel comp 303 body

Material

Steel comp 303 flow control device

Media For Which Designed

Water, fresh 2nd response

Media For Which Designed

Air 1st response

Thread Series Designator

Unjf 1st end

NSN

4820-01-418-9539

Part Number

ES9998-04

Description

Valve,safety Relief

CAGE

20418

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 ES9998-04 NSN 4820-01-418-9539

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

127220

UFC:

64490

LTL:

77.5

LCL:

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