Model: 527-235

Safety Relief Valve

Properties:

Pipe Size Accommodated
0.500 inches 2nd end
Thread Class
3a 1st end
Thread Direction
Right-hand 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Valve Discharge Flow Rate
19.5 cubic feet per minute
Connection Style
G42 flared (tube) 1st end
Connection Style
G46b plain (pipe) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 2nd end
Connection Type
Threaded external tube 1st end
Features Provided
Valve stem lock shield
Thready Qty Per Inch (tpi)
14 2nd end
Maximum Operating Pressure
450.0 pounds per square inch single response
Thread Size
0.500 inches 2nd end
Thread Size
0.875 inches 1st end
Seat Angle
30.0 degrees 1st end
Opening Pressure Setting
235.0 pounds per square inch
Outside Diameter Tube Accommodated
0.625 inches 1st end
Material
Copper alloy flow control device and rubber synthetic flow control device
Material
Copper alloy seat
Material
Copper alloy body
Media For Which Designed
Air single response
Thread Series Designator
Npt 2nd end
Thread Series Designator
Unf 1st end
Reference Number Differentiating Characteristics
As differentiated by relief pressure setting and discharge rate
NSN
4820-00-842-5176
Part Number
527-235
Description
Valve,safety Relief
CAGE
28193

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 527-235 NSN 4820-00-842-5176

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.0000lbs
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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