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4820-00-124-1995

Find complete technical information, availability, and procurement data for: 4820-00-124-1995

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4820-00-124-1995
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-00-124-1995
Item Name Code
05488
Assigment Date
11/20/1968 (57 years ago)

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.

inside spring bonnet type, disk flow control device, threaded renewable seat ring type, bolted bonnet attachment method, spring disk loading method

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Flow Control Device
disk
Bonnet Type
inside spring
Bonnet Attachment Method
bolted
Disk Loading Method
spring
Renewable Seat Ring Type
threaded
Bolt Hole Quantity
6 all ends
Maximum Operating Temp
650.0 fahrenheit single response
Valve Operation Method
automatic
Flange Shape
round with holes all ends
Connection Type
flange all ends
Features Provided
pressure tight outlet side
Adjustable Pressure Range
+5.0 to 10.0 pounds per square inch
Maximum Operating Pressure
200.0 pounds per square inch single response
Nominal Outside Diameter
5.062 inches all ends
Nominal Thickness
0.469 inches all ends
Bolt Hole Nominal Diameter
0.562 inches all ends
Bolt Circle Nominal Diameter
3.938 inches all ends
Flange Face Design
plain all ends
Material
steel body
Material
steel comp 303 seat
Material
steel comp 410 stem
Material
steel flow control device
Material Document And Classification
mil-s-15083,grade b mil spec single material response body
Material Document And Classification
mil-s-867,class 3 mil spec single material response flow control device
Material Document And Classification
qq-s-764,type303c-canceled fed spec single material response seat
Material Document And Classification
qq-s-763,class 410 fed spec single material response stem
Media For Which Designed
steam 1st response
Media For Which Designed
water, fresh 2nd response
Style Designator
angle
Reference Number Differentiating Characteristics
as differentiated by adjustable pressure range

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
4820-00-124-1992 No Name Available 09/01/1996

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
L3110B Safety Relief Valve
L3110B1 1-2 71T Safety Relief Valve
NMP306 Safety Relief Valve

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4820-00-124-1995?
The FSCG of the NSN 4820-00-124-1995 is 4820
Does the NSN 4820-00-124-1995 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-124-1995 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 4820-00-124-1995 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-124-1995 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 4820-00-124-1995 was assigned to the Federal Catalog?
It was assigned 57 years ago, on Wed, Nov 20, 1968

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