4478-5.0501/2IN

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-249-1326

Item Name Code

05488

Assigment Date

02/06/1987 (39 years ago)

spring disk loading method, disk flow control device, right-hand all ends thread direction, plain,optional end(pipe) 2nd end connection style, plain (pipe) 1st end connection style

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: disk
Disk Loading Method: spring
Connection Style: plain (pipe) 1st end
Connection Style: plain,optional end(pipe) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Connection Type: threaded internal pipe 2nd end
Adjustable Pressure Range: +1500.0 to 2000.0 pounds per square inch
Nominal Thread Size: 0.500 inches 1st end
Nominal Thread Size: 1.000 inches 2nd end
Material: steel comp 316 overall
Style Designator: angle
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
255-1SZ1/2IN1500T2000PSI	Safety Relief Valve
266-1 1/2IN 1500T2000PSI	Safety Relief Valve
266-1SZ1/2IN1500T2000PSI	Safety Relief Valve
4478-5.0501/2IN	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-249-1326?

The FSCG of the NSN 4820-01-249-1326 is 4820

Does the NSN 4820-01-249-1326 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-249-1326 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 4820-01-249-1326 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-249-1326 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 4820-01-249-1326 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Fri, Feb 6, 1987