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4820-01-649-9801

Safety Relief Valve

4820016499801 016499801 VRVD-125SS-EP-8

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE. View more Safety Relief Valve

4820-01-649-9801 VALVE,SAFETY RELIEF 4820016499801 016499801

Managed by United States
NSN Created on 17 Nov 2015
Data Last Changed
January 2023
NATO Update Count
3
NATO Data Quality
STYL Style C10 for 4820-01-649-9801 1/1
NSN 4820-01-649-9801 (Identification) 1/1

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4820-01-649-9801 Demil Restrictions 4820-01-649-9801

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

4820-01-649-9801 is a Safety Relief 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.

4820-01-649-9801 HTS and ScheduleB Import and Export 4820-01-649-9801

4820-01-649-9801 End Users End Users 4820-01-649-9801

Canada (ZC01)
Effective Date:
1 Nov 2015

4820-01-649-9801 Manufacturers Approved Sources 4820-01-649-9801

4820-01-649-9801 Technical Data Datasheet 4820-01-649-9801

Characteristic
Specifications
FIIG
A046B0
Bonnet Type [ADSR]
Inside Spring
Bonnet Attachment Method [ADST]
Integral
Connection Style [AHNC]
Plain (Pipe) 1St End
Connection Type [AWLS]
Threaded External Pipe 1St End
Disk Loading Method [ADSU]
Spring
Face To Face Distance [CWCF]
1.10 Inches
Flow Control Device [ADQU]
Stem
Material [MATT]
Steel Comp 316 Body
Material [MATT]
Steel Comp 316 Stem
Maximum Operating Pressure [CQGM]
150.0 Pounds Per Square Inch Single Response
Maximum Operating Temp [AEHZ]
400.0 Deg Fahrenheit Single Response
Nominal Pipe Size Accommodated [AAAR]
0.125 Inches 1St End
Nominal Thread Size [CQJX]
0.125 Inches 1St End
Opening Pressure Setting [CSDC]
8.00 Pounds Per Square Inch
Part Name Assigned By Controlling Agency [CXCY]
Vent Relief Valve
Thread Direction [AAJF]
Right-Hand 1St End
Thread Series Designator [THSD]
Npt 1St End
Valve Operation Method [AQLR]
Automatic
Valve Size [CCFG]
0.125 Inches
Style Designator [STYL]
Screw-In Cartridge

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4820-01-649-9801 Freight Data Freight Information 4820-01-649-9801

4820-01-649-9801 has freight characteristics managed by the Department of the Air Force.. 4820-01-649-9801 has a variance between NMFC and UFC when transported by rail and the description should be consulted.