Model: 1390424

Safety Relief Valve

Properties:

Pipe Size Accommodated
0.250 inches 2nd end
Pipe Size Accommodated
0.250 inches 1st end
Thread Direction
Right-hand 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Bonnet Type
Inside screw
Bonnet Attachment Method
Integral
Disk Loading Method
Spring
Maximum Operating Temp
180.0 degrees fahrenheit single response
Connection Style
G46b plain (pipe) 2nd end
Connection Style
G9 plain, optional en (pipe) 1st end
Connection Style
Plain (pipe) 2nd end
Connection Style
Plain, optional en (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 2nd end
Connection Type
Threaded internal pipe 1st end
Features Provided
Pressure tight outlet side
Thready Qty Per Inch (tpi)
18 2nd end
Maximum Operating Pressure
50.0 pounds per square inch single response
Thread Size
0.250 inches 1st end
Thread Size
0.250 inches 2nd end
Opening Pressure Setting
25.0 pounds per square inch
Material
Copper alloy seat
Material
Copper alloy body
Material
Steel comp 303 flow control device and rubber butadiene-acrylonitrile class nbr flow control device
Material
Steel comp 303 and rubber butadiene-acrylonitrile class nbr flow control device
Material Specification
Fed standard 66 federal standard 1st material response flow control device
Media For Which Designed
Air 1st response
Media For Which Designed
Gas, natural 2nd response
Thread Series Designator
Npt 2nd end
Thread Series Designator
Npt 1st end
NSN
4820-00-727-8028
Part Number
1390424
Description
Valve,safety Relief
CAGE
10001

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 1390424 NSN 4820-00-727-8028

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

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:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

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:
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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