4820-01-057-6793

Find complete technical information, availability, and procurement data for: 4820-01-057-6793
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-057-6793

Item Name Code

05488

Assigment Date

03/17/1978 (48 years ago)

250.0 fahrenheit single response maximum operating temp, right-hand all ends thread direction, poppet flow control device, spring disk loading method, 500.0 cubic feet per minute valve discharge flow rate

Product Characteristics

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

Thread Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Valve Discharge Flow Rate: 500.0 cubic feet per minute
Maximum Operating Temp: 250.0 fahrenheit single response
Connection Style: plain,optional end(pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded internal pipe all ends
Nominal Thread Size: 0.250 inches all ends
Opening Pressure Setting: 5500.0 pounds per square inch
Special Features: lockwire
Material: plastic polyamide (nylon) flow control device
Material: steel comp 303 body
Material: steel comp 303 seat
Material Document And Classification: astm a582,type 303,cond a assn std single material response body
Material Document And Classification: astm a582,type 303,cond a assn std single material response seat
Material Document And Classification: l-p-410 assn std single material response flow control device
Media For Which Designed: water-oil-gas single response
Surface Treatment: passivate
Style Designator: straight thru note: to be used for valve bodies of separable sections.
Thread Series Designator: npt all 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
5349T-2PP-L-5500	Safety Relief Valve
5349T-2PP-L-5500-2	Safety Relief Valve
639AS1366	Safety Relief Valve
639AS1366-2	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-057-6793?

The FSCG of the NSN 4820-01-057-6793 is 4820

Does the NSN 4820-01-057-6793 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-057-6793 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 4820-01-057-6793 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-057-6793 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 4820-01-057-6793 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Fri, Mar 17, 1978