Model: N256ALT2

Fluid Pressure Regulating Valve

Properties:

Body Material
Bronze
First End Flange Outside Diameter
5.375 inches
Body Style
Straight thru
Stem Material
Steel, corrosion resisting
Media For Which Designed
Steam
First End Connection Type
Plain face flange
First End Style Designator
Plain
First End Flange Shape Style
Round w/ bolt holes
First End Flange Thickness
0.562 inches
First End Bolt Hole Quantity
5
First End Bolt Hole Diameter
0.687 inches
First End Bolt Circle Diameter
4.062 inches
Second End Relationship With First End
Identical
Seat Material
Steel, corrosion resisting
Face To Face Distance
6.500 inches
Flow Control Device
Disk, flat
Flow Control Device Material
Steel, corrosion resisting
End Connection Quantity
2
Renewable Seat Ring Type
Welded
Outlet Pressure Range
+35.0/+60.0 pounds per square inch
Regulation Type
Automatic single stage
Valve Stem Design
Single seat
Valve Loading Method
Dome
Remote Actuation Method
Diaphragm
Maximum Inlet Pressure Rating
165.0 pounds per square inch
Filter
Not included
Reference Number Differentiating Characteristics
As differentiated by size 1-1/4 inch and inlet pressure
NSN
4820-00-247-0643
Part Number
N256ALT2
Description
Valve,regulating,fluid Pressure
CAGE
26505

A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.

Part N256ALT2 NSN 4820-00-247-0643

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
27565
FIIG:
A21100
Concept No.:
1
App. Key:
D
Cond. Code:
2
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8481809015
  • SITC: 74780
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid level

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