4820-00-654-3550

Find complete technical information, availability, and procurement data for: 4820-00-654-3550
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-654-3550

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

right-hand 1st end thread direction, disk flow control device, inside spring bonnet type, 0.250 inches 1st end nominal pipe size accommodated, integral bonnet attachment method

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: 0.250 inches 1st end
Thread Direction: right-hand 1st end
Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: integral
Disk Loading Method: spring
Maximum Operating Temp: 185.0 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 and bonnet packing
Maximum Operating Pressure: 5500.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches 1st end
Material: aluminum alloy 2024 body
Material: steel comp 303 flow control device
Material Document And Classification: qq-a-225/6,alloy2024,t4 fed spec single material response body
Material Document And Classification: qq-s-764,type 303 fed spec single material response flow control device
Media For Which Designed: air 1st response
Media For Which Designed: gas, inert 2nd response
Style Designator: angle
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
A220515	Safety Relief Valve
FIG330N14IN	Safety Relief Valve
FIG330T1-4IN	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-654-3550?

The FSCG of the NSN 4820-00-654-3550 is 4820

Does the NSN 4820-00-654-3550 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-654-3550 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 4820-00-654-3550 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-654-3550 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 4820-00-654-3550 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963