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4820-00-287-4628

Find complete technical information, availability, and procurement data for: 4820-00-287-4628

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4820-00-287-4628
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-00-287-4628
Item Name Code
05488
Assigment Date
01/01/1963 (63 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.

disk flow control device, right-hand 1st end thread direction, 0.750 inches 2nd end nominal pipe size accommodated, right-hand 2nd end thread direction, 0.500 inches 1st end nominal pipe size accommodated

Product Characteristics

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

Nominal Pipe Size Accommodated
0.500 inches 1st end
Nominal Pipe Size Accommodated
0.750 inches 2nd end
Thread Direction
right-hand 1st end
Thread Direction
right-hand 2nd end
Flow Control Device
disk
Bonnet Type
inside spring
Bonnet Attachment Method
threaded
Disk Loading Method
spring
Renewable Seat Ring Type
threaded
Connection Style
plain (pipe) 2nd end
Connection Style
plain,optional end(pipe) 1st end
Valve Operation Method
automatic
Connection Type
threaded external pipe 2nd end
Connection Type
threaded internal pipe 1st end
Features Provided
pressure tight outlet side
Adjustable Pressure Range
+3000.0 to 3200.0 pounds per square inch
Maximum Operating Pressure
3250.0 pounds per square inch single response
Nominal Thread Size
0.500 inches 1st end
Nominal Thread Size
0.750 inches 2nd end
Extra Long Reference Number
4900-984114pc2-3-10-11-22-24-26-27-29-30-32-35
Material
copper alloy body
Material
copper alloy flow control device
Material
nickel alloy seat
Material Document And Classification
-1l-b-892 mil spec single material response flow control device
Material Document And Classification
qq-b-637 fed spec single material response body
Material Document And Classification
qq-n-288,compb fed spec single material response seat
Media For Which Designed
air single response
Style Designator
angle
Thread Series Designator
npt 2nd end
Thread Series Designator
npt 1st end
Reference Number Differentiating Characteristics
as differentiated by relief pressure setting and elrn

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
4900-984114 Safety Relief Valve
4900-984114 ASSEMBLY 1 Safety Relief Valve
4900-984114PC2-3-10-11-22-24-26- Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-287-4628?
The FSCG of the NSN 4820-00-287-4628 is 4820
Does the NSN 4820-00-287-4628 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-287-4628 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 4820-00-287-4628 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-287-4628 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 4820-00-287-4628 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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