48-320

View detailed technical data, stock status, and sourcing information for: 48-320
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-477-5645

Item Name Code

05488

Assigment Date

05/16/1969 (57 years ago)

A ring-shaped item whose outer surface is so shaped as to form a seat for the coupling nut and the fitting between which it is assembled. It is designed to be slipped over tubing or hose so that tightening of the coupling nut to the fitting compresses the sleeve against the circumference of the tubing or hose thereby effecting a tight seal between the tubing, or hose fitting and coupling nut.

60.0 fahrenheit single response maximum operating temp, right-hand 1st end thread direction, disk flow control device, spring disk loading method, 0.250 inches 1st end nominal pipe size accommodated

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
Disk Loading Method: spring
Maximum Operating Temp: 60.0 fahrenheit single response
End Item Identification: grumman aerospace a10 aircraft
Connection Style: plain (pipe) 1st end
Valve Operation Method: manual
Connection Type: threaded external pipe 1st end
Thread Quantity Per Inch: 18 1st end
Maximum Operating Pressure: 320.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches 1st end
Opening Pressure Setting: 320.0 pounds per square inch
Material: copper alloy overall
Media For Which Designed: air single 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
48-320	Safety Relief Valve
48A-1/4-320	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-477-5645?

The FSCG of the NSN 4820-00-477-5645 is 4820

Does the NSN 4820-00-477-5645 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-477-5645 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-00-477-5645 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-477-5645 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 4820-00-477-5645 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, May 16, 1969