4820-01-151-3689

Find complete technical information, availability, and procurement data for: 4820-01-151-3689
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-151-3689

Item Name Code

05488

Assigment Date

04/16/1983 (43 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 screw bonnet type, bolted bonnet attachment method, spring disk loading method, 250.0 fahrenheit single response maximum operating temp, disk flow control device

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 screw
Bonnet Attachment Method: bolted
Disk Loading Method: spring
Maximum Operating Temp: 250.0 fahrenheit single response
Connection Style: socket with brazing ring (tube) 1st end
Connection Style: socket with brazing ring (tube) 2nd end
Valve Operation Method: automatic
Connection Type: unthreaded internal tube 1st end
Connection Type: unthreaded internal tube 2nd end
Adjustable Pressure Range: +59.0 to 72.0 pounds per square inch
Maximum Operating Pressure: 150.0 pounds per square inch single response
Nominal Outside Diameter Tube Accommodated: 1.315 inches 2nd end
Nominal Outside Diameter Tube Accommodated: 2.375 inches 1st end
Material: copper alloy body
Material: nickel alloy flow control device
Material: nickel alloy seat
Material: steel stem
Material Document And Classification: astm a276 assn std single material response stem
Material Document And Classification: qq-n-281 fed spec 1st material response or qq-n-288 fed spec 2nd material response flow control device
Material Document And Classification: qq-n-281 fed spec 1st material response or qq-n-288 fed spec 2nd material response seat
Material Document And Classification: qq-c-390,alloy d4/d/ fed spec single material response body
Media For Which Designed: water, fresh single response
Style Designator: angle

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
D49275 PART R10AF1J112	Safety Relief Valve
R10AF1J112	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-151-3689?

The FSCG of the NSN 4820-01-151-3689 is 4820

Does the NSN 4820-01-151-3689 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-151-3689 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 4820-01-151-3689 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-151-3689 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 4820-01-151-3689 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Sat, Apr 16, 1983