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4820-00-421-9406

Safety Relief Valve

4820004219406 004219406 2A1-2MNPT100 26-1/2IN-100PSI A23083

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

4820-00-421-9406 VALVE,SAFETY RELIEF 4820004219406 004219406

Managed by United States
NSN Created on 28 Dec 1970
Data Last Changed
January 2023
NATO Update Count
5
NATO Data Quality
STYL Style C1 for 4820-00-421-9406 1/1
NSN 4820-00-421-9406 (Identification) 1/1

4820-00-421-9406 Stock and Availability Marketplace 4820-00-421-9406

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2A1-2MNPT100 26-1/2IN-100PSI A23083 A valve designed to automatically release excessive pressures.
United States (US) 4. 4820-00-421-9406 Marketplace Restrictions Approved Sources Datasheet Management
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4820-00-421-9406 Demil Restrictions 4820-00-421-9406

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

4820-00-421-9406 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. 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. The precious metals content of this item is unknown.

4820-00-421-9406 HTS and ScheduleB Import and Export 4820-00-421-9406

4820-00-421-9406 End Users End Users 4820-00-421-9406

Republic of Korea (ZH01)
Effective Date:
1 Apr 1991
Turkey (ZW01)
Effective Date:
1 Nov 2005

4820-00-421-9406 Manufacturers Approved Sources 4820-00-421-9406

4820-00-421-9406 Technical Data Datasheet 4820-00-421-9406

Characteristic
Specifications
FIIG
A046B0
Bonnet Type [ADSR]
Inside Spring
Bonnet Attachment Method [ADST]
Threaded
Connection Style [AHNC]
Plain (Pipe) 2Nd End
Connection Style [AHNC]
Plain,Optional End(Pipe) 1St End
Connection Type [AWLS]
Threaded External Pipe 2Nd End
Connection Type [AWLS]
Threaded Internal Pipe 1St End
Disk Loading Method [ADSU]
Spring
Features Provided [CBBL]
Valve Stem Lock Shield
Flow Control Device [ADQU]
Disk
Material [MATT]
Copper Alloy Body
Material [MATT]
Copper Alloy Flow Control Device
Material [MATT]
Copper Alloy Seat
Maximum Operating Pressure [CQGM]
165.0 Pounds Per Square Inch Single Response
Media For Which Designed [MEDA]
Air 1St Response
Media For Which Designed [MEDA]
Gas, Natural 2Nd Response
Nominal Pipe Size Accommodated [AAAR]
0.500 Inches 2Nd End
Nominal Pipe Size Accommodated [AAAR]
0.750 Inches 1St End
Nominal Thread Size [CQJX]
0.500 Inches 2Nd End
Nominal Thread Size [CQJX]
0.750 Inches 1St End
Opening Pressure Setting [CSDC]
100.0 Pounds Per Square Inch
Valve Operation Method [AQLR]
Automatic
Valve Discharge Flow Rate [ADSY]
160.0 Cubic Feet Per Minute
Style Designator [STYL]
Angle
Thread Direction [AAJF]
Right-Hand 1St End
Thread Direction [AAJF]
Right-Hand 2Nd End
Thread Quantity Per Inch [CMLP]
14 2Nd End
Thread Series Designator [THSD]
Npt 2Nd End
Thread Series Designator [THSD]
Npt 1St End
Thread Quantity Per Inch [CMLP]
14 1St End

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4820-00-421-9406 Freight Data Freight Information 4820-00-421-9406

4820-00-421-9406 has freight characteristics.It has a National Motor Freight Classification (NMFC) of 127220. A Sub NMFC of X. It has a NMFC Description of PRESSURE REG/RED/RELIEF VALVES NOI. 4820-00-421-9406 is rated as class 77.5 when transported by Less-Than Truckload (LTL) freight. It has a Uniform Freight Classification (UFC) number of 64490 which rates the freight between FCL and LCL. 4820-00-421-9406 has a variance between NMFC and UFC when transported by rail and the description should be consulted. It has a Water Commodity Code (WCC) of 594 for ocean manifesting and military sealift. 4820-00-421-9406 is not classified as a special type of cargo when transported by water. 4820-00-421-9406 is not a consolidation and does not exceed 84" in any dimension. It should be compatible with a standard 72" Aircraft Cargo Door when transported by air.