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4820-01-491-8857

System Pressure Regulating Valve

4820014918857 014918857 201-1001

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. View more System Pressure Regulating Valve

4820-01-491-8857 VALVE,REGULATING,SYSTEM PRESSURE 4820014918857 014918857

Managed by United States
NSN Created on 5 Nov 2001
Data Last Changed
January 2023
NATO Update Count
3
NATO Data Quality
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NSN 4820-01-491-8857 (Generic Image) 1/1

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4820-01-491-8857 Demil Restrictions 4820-01-491-8857

DEMIL: A | DEMILI: 1 | CRITICALITY: X | HMIC: N | PMIC: A | EDC: A | ADPEC: 0

4820-01-491-8857 is a System Pressure Regulating Valve that does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. Demilitarization of this item has been confirmed and is not currently subject to changes. This item is considered a low risk when released from the control of the Department of Defense. The item may still be subject to the requirements of the Export Administration Regulations (EAR) and the Code of Federal Regulations (CFR). This item is not suspected to be hazardous. This item does not contain a precious metal.

4820-01-491-8857 HTS and ScheduleB Import and Export 4820-01-491-8857

4820-01-491-8857 End Users End Users 4820-01-491-8857

Australia (ZA01)
Effective Date:
1 Nov 2001

4820-01-491-8857 Manufacturers Approved Sources 4820-01-491-8857

4820-01-491-8857 Technical Data Datasheet 4820-01-491-8857

Characteristic
Specifications
FIIG
A21100
Body Material [AAFZ]
Zinc
Filter [AEWF]
Included
Furnished Items [ABFF]
Outlet Pressure Gage
Special Features [FEAT]
Single-Stage, Compressed Air Pressure Reducing Valve; 200 Mesh Stainless Strainer; Locking Handle
Flow Control Device [ADQU]
Diaphragm
End Connection Quantity [ADQZ]
1
Media For Which Designed [ACKL]
Air

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4820-01-491-8857 Freight Data Freight Information 4820-01-491-8857

4820-01-491-8857 has freight characteristics managed by Australia.. 4820-01-491-8857 has a variance between NMFC and UFC when transported by rail and the description should be consulted.