4820-01-374-7729

Find complete technical information, availability, and procurement data for: 4820-01-374-7729
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-374-7729

Item Name Code

05488

Assigment Date

04/29/1993 (33 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, 1.5 gallons per minute valve discharge flow rate, spring disk loading method, 125.0 fahrenheit single response maximum operating temp, seawolf class ssn end item identification

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
Disk Loading Method: spring
Valve Discharge Flow Rate: 1.5 gallons per minute
Maximum Operating Temp: 125.0 fahrenheit single response
End Item Identification: seawolf class ssn
Valve Operation Method: automatic
Connection Type: flange all ends
Valve Size: 0.500 inches
Maximum Operating Pressure: 35.0 pounds per square inch single response
Opening Pressure Setting: 28.5 pounds per square inch
Face To Face Distance: 3.250 inches
First Connection Face To Centerline Distance: 3.250 inches
Flange Face Design: raised straight all ends
Material: nickel alloy flow control device
Material: steel corrosion resisting body
Material: steel corrosion resisting seat
Material: steel corrosion resisting stem
Material Document And Classification: astm a351 assn std single material response body
Material Document And Classification: astm a582 assn std single material response seat
Material Document And Classification: astm a582 assn std single material response stem
Material Document And Classification: qq-n-281 fed spec single material response flow control device
Media For Which Designed: water, fresh single response
Style Designator: angle flanged ends

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
SW124A01E0028.5	Safety Relief Valve
SW124C01E0028	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-374-7729?

The FSCG of the NSN 4820-01-374-7729 is 4820

Does the NSN 4820-01-374-7729 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-374-7729 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 4820-01-374-7729 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-374-7729 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 4820-01-374-7729 was assigned to the Federal Catalog?

It was assigned 33 years ago, on Thu, Apr 29, 1993