Model: NMP-495

Safety Relief Valve

Properties:

Flow Control Device
Disk
Disk Loading Method
Spring
Bolt Hole Quantity
8 1st end
Bolt Hole Quantity
6 2nd end
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
2.500 inches
Adjustable Pressure Range
+558.0/+677.0 pounds per square inch
Outside Diameter
6.125 inches 2nd end
Outside Diameter
7.500 inches 1st end
Thickness
0.625 inches 2nd end
Thickness
1.375 inches 1st end
First Connection Face To Centerline Distance
5.500 inches
Bolt Hole Diameter
0.562 inches 2nd end
Bolt Hole Diameter
0.812 inches 1st end
Second Connection Face To Centerline Distance
5.750 inches
Bolt Circle Diameter
5.000 inches 2nd end
Bolt Circle Diameter
5.875 inches 1st end
Flange Face Design
Raised straight 1st end
Flange Face Design
Raised straight 2nd end
Raised Face Height
0.062 inches 2nd end
Raised Face Height
0.250 inches 1st end
Raised Face Diameter
4.000 inches 2nd end
Raised Face Diameter
5.000 inches 1st end
Material
Steel body
Material
Stainless steel flow control device
Material
Stainless steel stem
Material Specification
17-4-ph assn standard single material response flow control device
Material Specification
Mil-s-15083, cl b military specification single material response body
Material Specification
Qq-s-763, 416 federal specification single material response stem
NSN
4820-01-217-5712
Part Number
NMP-495
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-495 NSN 4820-01-217-5712

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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