B5255

View detailed technical data, stock status, and sourcing information for: B5255
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-264-8581

Item Name Code

05484

Assigment Date

07/08/1973 (53 years ago)

2b 3rd end thread class, 2b 2nd end thread class, right-hand 3rd end thread direction, right-hand 2nd end thread direction, 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.

Thread Class: 2b 2nd end
Thread Class: 2b 3rd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Thread Direction: right-hand 3rd end
Flow Control Device: stem
Bonnet Type: inside screw
Bonnet Attachment Method: threaded
Connection Style: gasket seal(boss) 2nd end
Connection Style: gasket seal(boss) 3rd end
Connection Style: plain,optional end(pipe) 1st end
Valve Operation Method: manual
Connection Type: threaded external pipe 1st end
Connection Type: threaded internal boss 2nd end
Connection Type: threaded internal boss 3rd end
Nominal Thread Size: 0.250 inches 1st end
Nominal Thread Size: 0.562 inches 2nd end
Nominal Thread Size: 0.562 inches 3rd end
Material: plastic seat
Material: steel comp 303 body
Material: steel corrosion resisting stem
Style Designator: cross
Thread Series Designator: npt 1st end
Thread Series Designator: unf 2nd end
Thread Series Designator: unf 3rd 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
B5255	Cross Valve

FAQs

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

What is the FSCG of the NSN 4820-00-264-8581?

The FSCG of the NSN 4820-00-264-8581 is 4820

Does the NSN 4820-00-264-8581 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 4820-00-264-8581 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 4820-00-264-8581 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-264-8581 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 4820-00-264-8581 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Sun, Jul 8, 1973