E8610C51M

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-097-0950

Item Name Code

05488

Assigment Date

07/06/1980 (46 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.

425.0 fahrenheit 1st response maximum operating temp, 0.250 inches all ends nominal pipe size accommodated, spring disk loading method, disk flow control device, 150.0 fahrenheit 2nd 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.

Nominal Pipe Size Accommodated: 0.250 inches all ends
Flow Control Device: disk
Disk Loading Method: spring
Maximum Operating Temp: 150.0 fahrenheit 2nd response
Maximum Operating Temp: 425.0 fahrenheit 1st response
End Item Identification: sturgeon class ssn(637)
Connection Style: socket with brazing ring all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe all ends
Adjustable Pressure Range: +15.0 to 19.0 pounds per square inch
Maximum Operating Pressure: 1500.0 pounds per square inch 1st response
Maximum Operating Pressure: 200.0 pounds per square inch 2nd response
Material: copper alloy body
Material: copper alloy seat
Material: nickel alloy flow control device
Material: nickel alloy stem
Media For Which Designed: air 1st response
Media For Which Designed: steam 2nd response
Media For Which Designed: water, salt 3rd 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
20235C51M	Safety Relief Valve
E8610C51M	Safety Relief Valve
E8610C51MUT	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-097-0950?

The FSCG of the NSN 4820-01-097-0950 is 4820

Does the NSN 4820-01-097-0950 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-097-0950 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 4820-01-097-0950 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-097-0950 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 4820-01-097-0950 was assigned to the Federal Catalog?

It was assigned 46 years ago, on Sun, Jul 6, 1980