Model: 645B-5-6-T

Safety Relief Valve

Properties:

Thread Class
2b all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
400.0 degrees fahrenheit single response
Connection Style
G4 gasket sea (boss) all ends
Connection Style
Gasket sea (boss) all ends
Valve Operation Method
Manual
Connection Type
Threaded internal boss all ends
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+235.0/+450.0 pounds per square inch
Maximum Operating Pressure
2200.0 pounds per square inch single response
Thread Size
0.562 inches all ends
Opening Pressure Setting
360.0 pounds per square inch
Outside Diameter Tube Accommodated
0.375 inches all ends
Material
Plastic polytetrafluoroethylene flow control device
Material
Stainless steel body
Material
Stainless steel seat
Media For Which Designed
Water-oil-gas single response
Surface Treatment
Passivate
Style Designator
Angle
Thread Series Designator
Unjf all ends
NSN
4820-00-059-4933
Part Number
645B-5-6-T
Description
Valve,safety Relief
CAGE
09990

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 645B-5-6-T NSN 4820-00-059-4933

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
Concept No.:
1
App. Key:
AP
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
SX
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
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

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