R10BB1B103-BM1

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-235-9742

Item Name Code

05488

Assigment Date

07/09/1986 (40 years ago)

A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.

disk flow control device, inside screw bonnet type, bolted bonnet attachment method, spring disk loading method, 250.0 fahrenheit single response maximum operating temp

Product Characteristics

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

Flow Control Device: disk
Bonnet Type: inside screw
Bonnet Attachment Method: bolted
Disk Loading Method: spring
Maximum Operating Temp: 250.0 fahrenheit single response
Connection Style: socket (tube) all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal tube all ends
Adjustable Pressure Range: +15.0 to 18.0 pounds per square inch
Maximum Operating Pressure: 400.0 pounds per square inch single response
Nominal Outside Diameter Tube Accommodated: 0.250 inches all ends
Material: steel corrosion resisting stem
Material Document And Classification: asb-61 assn std single material response body
Media For Which Designed: air 1st response
Media For Which Designed: gas, inert 2nd response
Style Designator: angle

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
D49251 1/4 INCH	Safety Relief Valve
R10BB1B103-BM1	Safety Relief Valve
R10BB1B105-BM1	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-235-9742?

The FSCG of the NSN 4820-01-235-9742 is 4820

Does the NSN 4820-01-235-9742 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-235-9742 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 4820-01-235-9742 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-235-9742 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 4820-01-235-9742 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Wed, Jul 9, 1986