Model: 9521-MOD231T270SET250PSI

Safety Relief Valve

Properties:

Thread Direction
Right-hand all ends
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
End Application
Aux/amphib ship maint strategy program
Connection Style
G46a plain (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube 1st end
Connection Type
Threaded external tube 2nd end
Thready Qty Per Inch (tpi)
11 1st end
Thready Qty Per Inch (tpi)
14 2nd end
Maximum Operating Pressure
230.0 pounds per square inch single response
Thread Size
0.500 inches 2nd end
Thread Size
0.750 inches 1st end
Opening Pressure Setting
200.0 pounds per square inch
Material
Copper alloy stem
Material
Copper alloy body
Material
Steel comp 303 seat
Material
Steel comp 316 flow control device
Material Specification
Aisi 303 assn standard single material response seat
Material Specification
Aisi 316 assn standard single material response flow control device
Material Specification
Astm b16 assn standard single material response stem
Material Specification
Qq-c-390, alloy d4/d/ federal specification single material response body
Media For Which Designed
Air single response
Thread Series Designator
Uns all ends
Furnished Items And Quantity
2 nut and 2 tailpiece
NSN
4820-01-052-0070
Part Number
9521-MOD231T270SET250PSI
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 9521-MOD231T270SET250PSI NSN 4820-01-052-0070

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:
3.8000lbs
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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