Model: A640

Safety Relief Valve

Properties:

Thread Direction

Right-hand 1st end

Maximum Operating Temp

75.0 degrees celsius single response

End Application

Band 9/10 tra - aircraft, prowler ea-6b

Connection Style

G46b plain (pipe) 1st end

Valve Operation Method

Automatic

Connection Type

Threaded external pipe 1st end

Seat Angle

37.0 degrees 1st end

Seat Angle

37.0 degrees all ends

Opening Pressure Setting

175.0 pounds per square inch

Part Name Assigned By Controlling Agency

Valve, relief, pressure

Material

Steel comp 316 body

Material Specification

Qq-s-763 federal specification single material response body or astm-a-479 assn standard single material response body

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35, type11 federal specification single treatment response

NSN

4820-01-499-9884

Part Number

A640

Description

Valve,safety Relief

CAGE

06239

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 A640 NSN 4820-01-499-9884

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:

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