B121

View detailed technical data, stock status, and sourcing information for: B121
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-252-4457

Item Name Code

05482

Assigment Date

04/03/1987 (39 years ago)

threaded internal pipe connection type, union bonnet attachment method, 150.0 pounds per square inch steam and 300.0 pounds per square inch water-oil-gas maximum operating pressure and media for which designed, manual valve operation method, inside screw bonnet type

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Bonnet Type: inside screw
Bonnet Attachment Method: union
Valve Operation Method: manual
Connection Type: threaded internal pipe
Maximum Operating Pressure And Media For Which Designed: 150.0 pounds per square inch steam and 300.0 pounds per square inch water-oil-gas
Stem Type: rising
Maximum Operating Temp And Media For Which Designed: 406.0 fahrenheit steam and 150.0 fahrenheit water-oil-gas
Inlet Relationship With Outlet: identical
Pressure Class: 150.0 pounds
Material: copper alloy 694 stem
Material: copper alloy 836 body
Material: copper alloy 836 seat
Material: copper alloy 836 disk
Material Document And Classification: astm b-371 alloy 694 assn std single material response stem
Material Document And Classification: astm b-62 assn std single material response body
Material Document And Classification: astm b-62 assn std single material response disk

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
B121	Gate Valve

FAQs

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

What is the FSCG of the NSN 4820-01-252-4457?

The FSCG of the NSN 4820-01-252-4457 is 4820

Does NSN 4820-01-252-4457 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 4820-01-252-4457 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-252-4457 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 4820-01-252-4457 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Fri, Apr 3, 1987