Model: NMP-1179

Safety Relief Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Union
Disk Loading Method
Spring
Bolt Hole Quantity
4 all ends
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
1.000 inches
Adjustable Pressure Range
+158.0 to 185.0 pounds per square inch
Maximum Operating Pressure
286.0 pounds per square inch single response
Outside Diameter
4.250 inches 1st end
Outside Diameter
6.000 inches 2nd end
Thickness
0.938 inches all ends
First Connection Face To Centerline Distance
4.688 inches
Bolt Hole Diameter
0.625 inches 1st end
Bolt Hole Diameter
0.750 inches 2nd end
Second Connection Face To Centerline Distance
4.875 inches
Bolt Circle Diameter
3.125 inches 1st end
Bolt Circle Diameter
4.750 inches 2nd end
Flange Face Design
Raised straight all ends
Raised Face Height
0.062 inches 2nd end
Raised Face Height
0.438 inches 1st end
Raised Face Diameter
2.000 inches 1st end
Raised Face Diameter
3.375 inches 2nd end
Material
Stainless steel flow control device
Material
Stainless steel stem
Material
Steel uns k03504 body
Media For Which Designed
Liquid, ingested single response
Style Designator
C1a angle flanged ends
NSN
4820-01-228-4260
Part Number
NMP-1179
Description
Valve,safety Relief
CAGE
75954

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 NMP-1179 NSN 4820-01-228-4260

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:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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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