Model: 977659-01

Safety Relief Valve

Properties:

End Application

Shock absorber

Mounting Facility

Threaded fastener

Thread Size

0.250 inches all ends

Part Name Assigned By Controlling Agency

Valve, relief, 1/4 mnpt x 1/4 fnpt

Thread Series Designator

Npt 1st end

Thread Series Designator

Nptf 2nd end

NSN

4820-01-644-6963

Part Number

977659-01

Description

Valve,safety Relief

CAGE

16603

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 977659-01 NSN 4820-01-644-6963

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:

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