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System Pressure Regulating Valve NSN 4820-01-288-6739

Item Description

A value designed to automatically maintain within close limits a predetermined pressure within a closed system regardless of the higher fluctuating or constant inlet pressure. The excess pressure is by-passed to the accumulator or reservoir in lieu of passing through the entire system. It is designed primarily for use in refrigeration and air conditioning systems. Excludes valve, regulating, fluid pressure and valve, calibrated flow.

NSN 4820-01-288-6739 NSN: 4820-01-288-6739

Features and Characteristics

Body Material
Bronze
Body Style
Angle
Furnished Items
Bonnet
Media For Which Designed
Water and ethylene glycol and sulfamic acid
First End Connection Type
Threaded internal pipe
First End Style Designator
Plain
First End Thread Size And Series/type Designator
3/4-14 npt
First End Thread Direction
Right-hand
Second End Relationship With First End
Not identical
Second End Connection Type
Threaded external pipe
Second End Style Designator
Plain
Second End Thread Size And Series/type Designator
3/4-14 npt
Second End Thread Direction
Right-hand
First Connection Face To Centerline Distance
2.000 inches
Second Connection Face To Centerline Distance
1.630 inches
Flow Control Device
Disk
End Connection Quantity
2
Regulation Type
Automatic single stage
Valve Loading Method
Spring
Maximum Inlet Pressure Rating
300.0 pounds per square inch
FSC
4820 Nonpowered Valves
NIIN
012886739
NSN
4820012886739

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
5-45-5166
Cage Code:
81361
Status:
A
MSDS:
Part Number:
19296-1
Cage Code:
5RQL2
Status:
A
MSDS:
Part Number:
FIG. 20-1
Cage Code:
01343
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481809015
  • NAICS: 332911
  • SITC: 74780
  • Description: Regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid level
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-01-288-6739
What are the manufacturers of nsn 4820012886739?
Does this nsn 4820012886739 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012886739
A value designed to automatically maintain within close limits a predetermined pressure within a closed system regardless of the higher fluctuating or constant inlet pressure. the excess pressure is by-passed to the accumulator or reservoir in lieu of passing through the entire system. it is designed primarily for use in refrigeration and air conditioning systems. excludes valve, regulating, fluid pressure and valve, calibrated flow.
Does nsn 4820012886739 contain any precious metals?
No precious metal content.
Does nsn 4820012886739 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012886739?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
35896
FIIG:
A21100
App. Key:
D
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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