1B645BJ 1 1/4IN

View detailed technical data, stock status, and sourcing information for: 1B645BJ 1 1/4IN
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-280-3922

Item Name Code

05482

Assigment Date

06/09/1988 (38 years ago)

A valve having a flat or tapered disk (gate) which moves transversely to the axis of flow by rotating or sliding movements of the stem to open or close the orifice. It may also contain an oval or rectangular shaped slide which may be manually, motor, or pressure operated through the means of an arm or arm assembly. The body flange may be designed to accommodate tube type connectors. It may or may not contain thermal relief features. Includes valve (gate) specifically designed for the control of fluid systems in aircraft or missiles.

socket, weld, tube connection type, threaded bonnet attachment method, inside spring bonnet type, 1.250 inches valve size, manual valve operation method

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 spring
Bonnet Attachment Method: threaded
Valve Operation Method: manual
Connection Type: socket, weld, tube
Valve Size: 1.250 inches
Maximum Operating Pressure And Media For Which Designed: 200.0 pounds per square inch water-oil-gas
Stem Type: nonrising
Nominal Outside Diameter Tube Accommodated: 1.250 inches
Inlet Relationship With Outlet: identical
Material: copper alloy body
Material: copper alloy disk
Material: copper alloy seat
Material: copper alloy stem

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
1B645BJ 1 1/4IN	Gate Valve

FAQs

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

What is the FSCG of the NSN 4820-01-280-3922?

The FSCG of the NSN 4820-01-280-3922 is 4820

Does NSN 4820-01-280-3922 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 4820-01-280-3922 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-280-3922 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 4820-01-280-3922 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Thu, Jun 9, 1988