R10BD1D104ANDD4

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-237-2805

Item Name Code

05488

Assigment Date

07/29/1986 (40 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

0.500 inches all ends nominal pipe size accommodated, disk flow control device, 425.0 fahrenheit single response maximum operating temp, socket all ends connection style, spring disk loading method

Product Characteristics

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

Nominal Pipe Size Accommodated: 0.500 inches all ends
Flow Control Device: disk
Disk Loading Method: spring
Maximum Operating Temp: 425.0 fahrenheit single response
Connection Style: socket all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe all ends
Adjustable Pressure Range: +12.0 to 15.0 pounds per square inch
Maximum Operating Pressure: 400.0 pounds per square inch single response
Material: nickel alloy seat
Material Document And Classification: astm a27 assn std single material response stem
Material Document And Classification: astm b-61 assn std single material response body
Material Document And Classification: qq-n-281 fed spec single material response flow control device
Material Document And Classification: qq-n-281 fed spec single material response seat
Media For Which Designed: air 1st response
Media For Which Designed: gas, natural 2nd response
Style Designator: angle
Furnished Items And Quantity: 1 lever

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
D48667-04-BM1	Safety Relief Valve
D48667PARTR10BD1D104	Safety Relief Valve
R10BD1D104ANDD4	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-237-2805?

The FSCG of the NSN 4820-01-237-2805 is 4820

Does the NSN 4820-01-237-2805 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-237-2805 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 4820-01-237-2805 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-237-2805 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 4820-01-237-2805 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Tue, Jul 29, 1986