Model: 620B-13-4-2

Safety Relief Valve

Properties:

Thread Class
2a 2nd end
Thread Class
2b 1st end
Thread Direction
Right-hand 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Maximum Operating Temp
225.0 degrees fahrenheit single response
Connection Style
G42 flared (tube) 2nd end
Connection Style
G5a flar (tube) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external tube 2nd end
Connection Type
Threaded internal tube 1st end
Maximum Operating Pressure
3600.0 pounds per square inch single response
Thread Size
0.125 inches 1st end
Thread Size
0.125 inches 2nd end
Seat Angle
37.0 degrees 2nd end
Opening Pressure Setting
3200.0 pounds per square inch
Outside Diameter Tube Accommodated
0.125 inches 1st end
Material
Aluminum alloy body
Material
Plastic polytetrafluoroethylene seat
Material
Steel comp 416 flow control device
Media For Which Designed
Air 1st response
Media For Which Designed
Fuel/oil, hydrocarbon 2nd response
Style Designator
C1 angle
Thread Series Designator
Unf 1st end
Thread Series Designator
Unf 2nd end
NSN
4820-01-220-6603
Part Number
620B-13-4-2
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 620B-13-4-2 NSN 4820-01-220-6603

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.4000lbs
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:
576
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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