4820-01-522-4757

Oxygen System Check Valve email this page

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Reference images of this national stock number
Reference of NSN 4820-01-522-4757 Reference of NSN 4820-01-522-4757 Reference of NSN 4820-01-522-4757 Reference of NSN 4820-01-522-4757 Reference of NSN 4820-01-522-4757 Reference of NSN 4820-01-522-4757 Reference of NSN 4820-01-522-4757 Reference of NSN 4820-01-522-4757 Reference of NSN 4820-01-522-4757 Reference of NSN 4820-01-522-4757 Reference of NSN 4820-01-522-4757 Reference of NSN 4820-01-522-4757 Reference of NSN 4820-01-522-4757 Reference of NSN 4820-01-522-4757

Model or part number: P21018

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pdf NSN 4820-01-522-4757 Datasheet

MRC:
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD
Thread Class:
3a all ends
MRC:
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.AAJF
Thread Direction:
Right-hand all ends
MRC:
The part that controls the flow through the item.ADQU
Flow Control Device:
Poppet
MRC:
The means by which the bonnet is attached to the item.ADST
Bonnet Attachment Method:
Threaded
MRC:
The maximum temperature at which the item is rated to operate for an extended period of time.AEHZ
Maximum Operating Temp:
140.0 degrees fahrenheit single response
MRC:
The minimum temperature at which the item is designed to operate.AEQJ
Minimum Operating Temp:
-40.0 degrees fahrenheit
MRC:
The national stock number or the identification information of the end equipment for which the item is a part.AGAV
End Application:
Astor airborne radar systems
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.AHNC
Connection Style:
Flared (tube) all ends
MRC:
The means used to control the operation of the valve.AQLR
Valve Operation Method:
Manual
MRC:
Indicates the type of connection/s/.AWLS
Connection Type:
Threaded external tube all ends
MRC:
The number of threads on the item per linear inch measured on a line parallel to the thread axis.CMLP
Thready Qty Per Inch (tpi):
20 all ends
MRC:
The maximum pressure at which the item is rated for operation.CQGM
Maximum Operating Pressure:
100.0 pounds per square inch single response
MRC:
A designation that is used for the purpose of general identification of the thread.CQJX
Thread Size:
0.312 inches all ends
MRC:
The angle of the end surface upon which the mated surface seats.CQRB
Seat Angle:
37.0 degrees all ends
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Rubber silicone class q flow control device
MRC:
The type of media for which the item is designed.MEDA
Media For Which Designed:
Oxygen, liquid single response
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Straight thru
MRC:
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.THSD
Thread Series Designator:
Unjf all ends
MRC:
--
NIIN:
015224757
MRC:
--
NATO Stock Number:
4820-01-522-4757
MRC:
--
Shelf Life:
N/A
MRC:
--
UOM:
--
MRC:
--
DEMIL:
No
FIIG:
--
FIIG:
A530B0
MRC:
--
INC:
37942
MRC:
--
IMM:
AX
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Delivery of IN-STOCK orders ship same-day when order is placed before 2:00 PM EST.

Delivery dates for NON-STOCK items are estimates based on current backlog and are subject to confirmation at the time of order.

Formal Definition

Government issue definition of NSN 4820-01-522-4757

An item permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It is specifically designed and/or cleaned for oxygen systems. See also valve, check; valve, stop-check.

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This NSN is registered to the following cage codes.
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