Model: 9957D41M

Safety Relief Valve

Properties:

Pipe Size Accommodated
2.000 inches 2nd end
Flow Control Device
Disk
Bolt Hole Quantity
4 1st end
End Application
Propulsion systems
Valve Operation Method
Automatic
Flange Shape
Round with holes 1st end
Connection Type
Flange 1st end
Connection Type
Unthreaded internal pipe 2nd end
Adjustable Pressure Range
+20.0/+24.0 pounds per square inch
Outside Diameter
6.000 inches 1st end
Thickness
0.500 inches 1st end
Bolt Hole Diameter
0.750 inches 1st end
Bolt Circle Diameter
4.750 inches 1st end
Flange Face Design
Plain 1st end
Material
Copper alloy body
Material
Steel comp 316 stem
NSN
4820-01-255-8899
Part Number
9957D41M
Description
Valve,safety Relief
CAGE
15187

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 9957D41M NSN 4820-01-255-8899

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:
--
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:
051080
UFC:
29300
LTL:
RATING VARIABLE
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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