Safety Relief Valve
437937-1
(NSN) National Stock Number
4820-00-060-6445
Federal Supply Classification
4820 Nonpowered Valves
Item Name Code
05488
Schedule B Code
8481400000
Summary
3a 2nd end thread class, 3b 1st end thread class, right-hand 1st end thread direction, right-hand 2nd end thread direction, poppet flow control device, spring disk loading method
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| X | - | - | 3 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | XX |
Identification
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.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 05488 | A046B0 | 1 | 2 |
Specifications
Thread Class
3a 2nd end
Details
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.Thread Class
3b 1st end
Details
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.Thread Direction
right-hand 1st end
Details
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.Thread Direction
right-hand 2nd end
Details
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.Flow Control Device
poppet
Details
The part that controls the flow through the item.Disk Loading Method
spring
Details
The means of closing the item when inlet pressure decreases.Connection Style
flared (tube) 2nd end
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.Connection Style
swivel nut, flare(tube) 1st end
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.Valve Operation Method
automatic
Details
The means used to control the operation of the valve.Connection Type
threaded external tube 2nd end
Details
Indicates the type of connection/s/.Connection Type
threaded internal tube 1st end
Details
Indicates the type of connection/s/.Features Provided
pressure tight outlet side
Details
Those features,not otherwise specified,which may be required for proper functioning of the item.Thread Quantity Per Inch
16 2nd end
Details
The number of threads on the item per linear inch measured on a line parallel to the thread axis.Thread Quantity Per Inch
16 1st end
Details
The number of threads on the item per linear inch measured on a line parallel to the thread axis.Nominal Thread Size
0.750 inches 2nd end
Details
A designation that is used for the purpose of general identification of the thread.Nominal Thread Size
0.750 inches 1st end
Details
A designation that is used for the purpose of general identification of the thread.Seat Angle
37.0 degrees 2nd end
Details
The angle of the end surface upon which the mated surface seats.Seat Angle
37.0 degrees 1st end
Details
The angle of the end surface upon which the mated surface seats.Opening Pressure Setting
0.288 pounds per square inch
Details
The predetermined pressure at which the item is calibrated to open.Nominal Outside Diameter Tube Accommodated
0.500 inches 1st end
Details
The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.Nominal Outside Diameter Tube Accommodated
0.500 inches 2nd end
Details
The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.Material
aluminum alloy 2024 overall
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material Document And Classification
qq-a-225/6,alloy2024 fed spec single material response flow control device
Details
The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.Style Designator
straight thru
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.Thread Series Designator
unf 1st end
Details
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.Thread Series Designator
unf 2nd end
Details
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.Master-Cross Reference List
| Part | CAGE | DAC | HCC | RNCC | RNVC | MSDS | RNAAC |
|---|---|---|---|---|---|---|---|
| P9-533 | 91816 | X | - | 5 | 2 | - | XX |
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
| HMIC | PMIC | ESD/EMI | Criticality |
|---|---|---|---|
| N | U | - | - |
Freight
Universal / National Freight and Handling Information
| UFC | HMC | LTL | LCL |
|---|---|---|---|
| 64490 | - | P | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 594 | Z | 9 |
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Manufacturer
RAYTHEON COMPANY DIV RIS FORT WAYNE
CAGE: 37695
FORT WAYNE
, IN
, 46808-4106
UNITED STATES
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FAQs
Frequently asked questions for NSN 4820-00-060-6445
What is the NIIN of the NSN 4820-00-060-6445?
The National Item Identification Number (NIIN) of the NSN 4820-00-060-6445 is 00-060-6445
When the NSN 4820-00-060-6445 was assigned to the Federal Catalog?
It was assigned 61 years ago, on Tue, Jan 1, 1963
Does the NSN 4820-00-060-6445 contain any precious metals?
Type/content is unknown
Does the NSN 4820-00-060-6445 contain any hazardous material?
No data in HMIRS
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