Model: 1641-8T6T

Safety Relief Valve

Properties:

Thread Class
3b 1st end
Thread Direction
Right-hand 1st end
Connection Style
G4 gasket sea (boss) 1st end
Connection Style
Gasket sea (boss) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external boss 2nd end
Connection Type
Threaded internal boss 1st end
Features Provided
Pressure tight outlet side
Thready Qty Per Inch (tpi)
18 1st end
Adjustable Pressure Range
+900.0/+950.0 pounds per square inch
Thread Size
0.562 inches 1st end
Style Designator
Angle
Thread Series Designator
Unf 1st end
NSN
4820-00-672-6581
Part Number
1641-8T6T
Description
Valve,safety Relief
CAGE
8Z296

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 1641-8T6T NSN 4820-00-672-6581

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:
CRITL:
X

Freight Classification

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

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