4820-01-121-8056

Safety Relief Valve email this page
ITAR Registered

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Reference images of this national stock number
Reference of NSN 4820-01-121-8056 Reference of NSN 4820-01-121-8056 Reference of NSN 4820-01-121-8056 Reference of NSN 4820-01-121-8056 Reference of NSN 4820-01-121-8056

Model or part number: 1511-L

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Description

Velocity Fuse NSN 4820-01-121-8056.

pdf NSN 4820-01-121-8056 Datasheet

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 1st end
MRC:
The part that controls the flow through the item.ADQU
Flow Control Device:
Disk
MRC:
Indicates the type of housing on the item that accommodates the stem packing or spring.ADSR
Bonnet Type:
Inside spring
MRC:
The means by which the bonnet is attached to the item.ADST
Bonnet Attachment Method:
Bolted
MRC:
The means of closing the item when inlet pressure decreases.ADSU
Disk Loading Method:
Spring
MRC:
The number of bolt holes provided on the item.AECS
Bolt Hole Quantity:
4 2nd end
MRC:
The maximum temperature at which the item is rated to operate for an extended period of time.AEHZ
Maximum Operating Temp:
450.0 degrees fahrenheit single response
MRC:
The national stock number or the identification information of the end equipment for which the item is a part.AGAV
End Application:
Used on condensate tank onboard 270 ft wmec cg vessels
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.AHNC
Connection Style:
Plain, optional en (pipe) 1st end
MRC:
The means used to control the operation of the valve.AQLR
Valve Operation Method:
Automatic
MRC:
The physical configuration of the flange.ARKN
Flange Shape:
Round with holes 2nd end
MRC:
Indicates the type of connection/s/.AWLS
Connection Type:
Threaded internal pipe 1st end
MRC:
Designates the size of the valve.CCFG
Valve Size:
4.000 inches
MRC:
The maximum pressure at which the item is rated for operation.CQGM
Maximum Operating Pressure:
30.0 pounds per square inch single response
MRC:
A designation that is used for the purpose of general identification of the thread.CQJX
Thread Size:
4.000 inches 1st end
MRC:
The nominal length of a straight line which passes through the center of an item,and terminates at the outside circumference.CWCD
Outside Diameter:
7.000 inches 2nd end
MRC:
A nominal measurement of the smallest dimension of an item,in distinction from length or width.CWCK
Thickness:
0.687 inches 2nd end
MRC:
None.CWCL
First Connection Face To Centerline Distance:
5.250 inches
MRC:
The nominal length of a straight line which passes through the center of the bolt hole,and terminates at the circumference.CWCQ
Bolt Hole Diameter:
0.625 inches 2nd end
MRC:
None.CWCR
Second Connection Face To Centerline Distance:
5.500 inches
MRC:
The nominal length of a straight line which passes through the center of the bolt circle,and terminates at the circumference.CWCT
Bolt Circle Diameter:
5.875 inches 2nd end
MRC:
The design of the flange face.CWDF
Flange Face Design:
Raised straight 2nd end
MRC:
A nominal measurement from the bottom to the top surface of a raised face,in distinction from depth.CWDH
Raised Face Height:
0.062 inches 2nd end
MRC:
The nominal length of a straight line which passes through the center of a raised face,and terminates at the circumference.CWDL
Raised Face Diameter:
4.687 inches 2nd end
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Iron cast body
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Angle flanged ends
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:
Npt 1st end
MRC:
--
NIIN:
011218056
MRC:
--
NATO Stock Number:
4820-01-121-8056
MRC:
--
Shelf Life:
N/A
MRC:
--
UOM:
--
MRC:
--
DEMIL:
Yes - DEMIL/MLI
Export Control Information  
FIIG:
--
FIIG:
A046B0
MRC:
--
INC:
05488
MRC:
--
IMM:
AX
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Shipping

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 4820-01-121-8056

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.

Import / Export

Schedule B Classification
Schedule B Number
NAIC National Association of Insurance Commissioners
End Use A classification system for U.S. exported and imported merchandise based on principal use rather than the physical characteristics of the merchandise. End-Use codes are assigned by the Bureau of Economic Analysis under the U.S. Department of Commerce.
SITC Commodity classification system defined by the United Nations.
USDA
HITECH
Schedule B:
8481400000
NAICS:
332911
End Use Class:
21180
SITC:
74740
USDA:
1
HITECH:
0

Schedule B Codes Definitions:

Schedule B 8481400000

Safety Or Relief Valves

End Use Code 21180

Industrial Machines, Other

Standard Intl. Trade Class (SITC) 74740

Safety Or Relief Valves

Manufacturers

This NSN is registered to the following cage codes.
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