Model: N-523

Fluid Pressure Regulating Valve

Special Features:

Reversible buna-n seat disk for drip-tight closure

Properties:

Body Material
Bronze
Body Style
Straight thru
Stem Material
Nickel copper alloy
Furnished Items
Tailpiece and union nut
Media For Which Designed
Water
First End Connection Type
Unthreaded internal tube
First End Style Designator
Socket w/brazing ring
First End Outside Diameter Tube Accommodated
0.375 inches
Second End Relationship With First End
Identical
Seat Material
Nickel copper alloy
Packing Material
Rubber, buna-n
Flow Control Device
Diaphragm
Flow Control Device Material
Rubber, buna-n
End Connection Quantity
2
Outlet Pressure Range
+60.0/+100.0 pounds per square inch
Regulation Type
Automatic single stage
Valve Loading Method
Spring
Maximum Inlet Pressure Rating
350.0 pounds per square inch
Filter
Not included
NSN
4820-01-181-3609
Part Number
N-523
Description
Valve,regulating,fluid Pressure
CAGE

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 N-523 NSN 4820-01-181-3609

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
7.0000lbs
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:
050855
UFC:
29290
LTL:
RATING VARIABLE
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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