Model: 48A

Safety Relief Valve

Properties:

Thread Direction

Right-hand 1st end

Flow Control Device

Disk

Bonnet Type

Inside screw

Bonnet Attachment Method

Pressure seal, ring type

Disk Loading Method

Spring

Valve Discharge Flow Rate

57.0 cubic feet per minute

Maximum Operating Temp

300.0 degrees fahrenheit single response

End Application

Grumman; a10 aircraft

Connection Style

G46b plain (pipe) 1st end

Valve Operation Method

Automatic or manual

Connection Type

Threaded external pipe 1st end

Features Provided

Pressure tight outlet side

Maximum Operating Pressure

225.0 pounds per square inch single response

Thread Size

0.250 inches 1st end

Opening Pressure Setting

100.0 pounds per square inch

Material

Copper alloy

Media For Which Designed

Fuel/oil, hydrocarbon single response

Thread Series Designator

Npt 1st end

NSN

4820-00-837-8183

Part Number

48A

Description

Valve,safety Relief

CAGE

01343

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 48A NSN 4820-00-837-8183

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:

0.2000lbs

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:

050855

UFC:

29290

LTL:

RATING VARIABLE

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