Model: 42550-1

Fluid Pressure Regulating Valve

Properties:

Body Material
Aluminum alloy, qq&a&268, 2024, cond t42
Outside Surface Treatment
Anodized, mil&a&8625
Media For Which Designed
Hydraulic fluid, mil&0&5606
First End Connection Type
Threaded internal boss
First End Style Designator
Gasket seal
First End Thread Size And Series/type Designator
7/16-20 unf
First End Thread Class
3b
First End Thread Direction
Right-hand
Second End Relationship With First End
Not identical
Second End Connection Type
Threaded internal boss
Second End Style Designator
Gasket seal
Second End Thread Size And Series/type Designator
1/2-20 unf
Second End Thread Class
3b
Second End Thread Direction
Right-hand
Seat Material
Steel 4402, ams5630
Flow Control Device
Poppet
Flow Control Device Material
Steel, corrosion resisting, qq&s&764, comp 416
End Connection Quantity
2
Regulation Type
Manual single stage
Manual Control Method
Screw
Valve Stem Design
Single seat
Valve Loading Method
Spring
Maximum Inlet Pressure Rating
1500.0 pounds per square inch
Filter
Not included
Tempurature Rating
Between -65.0 degrees fahrenheit and 160.0 degrees fahrenheit
NSN
4810-00-992-0940
Part Number
42550-1
Description
Valve,regulating,fluid Pressure
CAGE
81873

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 42550-1 NSN 4810-00-992-0940

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:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
60.0
WCC:
736
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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