Model: 49

Safety Relief Valve

Properties:

Pipe Size Accommodated
0.250 inches 1st end
Thread Direction
Right-hand 1st end
Disk Loading Method
Spring
Connection Style
G50 external seat for gasket seal (boss) 1st end
Connection Style
External seat for gasket seal (boss) 1st end
Connection Type
Threaded external pipe 1st end
Thready Qty Per Inch (tpi)
18 1st end
Adjustable Pressure Range
+10.0/+12.0 pounds per square inch
Thread Size
0.250 inches 1st end
Material
Aluminum alloy body
Material
Rubber butadiene-acrylonitrile class nbr seat
Surface Treatment
Oxide
Style Designator
Angle
Thread Series Designator
Npt 1st end
NSN
4820-00-529-3431
Part Number
49
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 49 NSN 4820-00-529-3431

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:
658
TCC:
Z
SHC:
Z
ACC:
Instruments/Radio

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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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