Safety Relief Valve

2129019

2129019
(NSN) National Stock Number
4820-00-005-7601
Federal Supply Classification
4820 Nonpowered Valves
Item Name Code
05488
Schedule B Code
8481400000
Summary

2a 1st end thread class, right-hand 1st end thread direction, ball flow control device, integral bonnet attachment method, spring disk loading method, external seat for gasket seal (boss) 1st end connection style

DAC HCC DMIL RNCC
6 - - C
RNVC SADC MSDS RNAAC
1 AC - ZZ
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
2a 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.
Flow Control Device
ball
Details The part that controls the flow through the item.
Bonnet Attachment Method
integral
Details The means by which the bonnet is attached to the item.
Disk Loading Method
spring
Details The means of closing the item when inlet pressure decreases.
Connection Style
external seat for gasket seal (boss) 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 internal boss 1st end
Details Indicates the type of connection/s/.
Nominal Thread Size
0.500 inches 1st end
Details A designation that is used for the purpose of general identification of the thread.
Special Features
inlet filter included
Details Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.
Material
steel overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Style Designator
angle
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.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
2129019 86403 5 - 3 2 - SE
22111 44185 6 - C 1 - ZZ
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
ATWOOD FENCE CO INC
CAGE: 93334
KOSCIUSKO , MS , 39090-6970
UNITED STATES
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FAQs
Frequently asked questions for NSN 4820-00-005-7601
What is the NIIN of the NSN 4820-00-005-7601?
The National Item Identification Number (NIIN) of the NSN 4820-00-005-7601 is 00-005-7601
When the NSN 4820-00-005-7601 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Sun, Jun 11, 1972
Does the NSN 4820-00-005-7601 contain any precious metals?
Type/content is unknown
Does the NSN 4820-00-005-7601 contain any hazardous material?
No data in HMIRS

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