4820-00-957-1993

Find complete technical information, availability, and procurement data for: 4820-00-957-1993
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-957-1993

Item Name Code

05488

Assigment Date

01/01/1962 (64 years ago)

poppet flow control device, spring disk loading method, 0.125 inches 1st end nominal pipe size accommodated, 450.0 fahrenheit single response maximum operating temp, right-hand 1st end thread direction

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: 0.125 inches 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 450.0 fahrenheit single response
Connection Style: plain (pipe) 1st end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Features Provided: valve stem lock shield
Maximum Operating Pressure: 200.0 pounds per square inch single response
Nominal Thread Size: 0.125 inches 1st end
Opening Pressure Setting: 40.0 pounds per square inch
Material: aluminum alloy 2024 and rubber silicone class q flow control device
Material: aluminum alloy 2024 body
Material: aluminum alloy 2024 seat
Material Document And Classification: qq-a-225/6,alloy 2024,t4 fed spec single material response seat
Material Document And Classification: qq-a-225/6,alloy2024,t4 fed spec 1st material response flow control device
Material Document And Classification: qq-a-225/6,alloy2024,t4 fed spec single material response body
Media For Which Designed: air 1st response
Media For Which Designed: oil, chlorinated transformer 3rd response
Media For Which Designed: oxygen, gaseous 2nd response
Surface Treatment: anodize
Surface Treatment Document And Classification: mil-a-8625,ty 2 mil spec single treatment response
Style Designator: straight thru
Thread Series Designator: npt 1st end

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
524A1M40	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-957-1993?

The FSCG of the NSN 4820-00-957-1993 is 4820

Does the NSN 4820-00-957-1993 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-957-1993 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 4820-00-957-1993 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-957-1993 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 4820-00-957-1993 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962