FIG 286 1 1/2 IN

View detailed technical data, stock status, and sourcing information for: FIG 286 1 1/2 IN
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-801-7850

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

inside spring bonnet type, threaded bonnet attachment method, disk flow control device, right-hand all ends thread direction, 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.

Thread Direction: right-hand all ends
Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: threaded
Disk Loading Method: spring
Maximum Operating Temp: 550.0 fahrenheit single response
Connection Style: plain (pipe) 1st end
Connection Style: plain,optional end(pipe) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Connection Type: threaded internal pipe 2nd end
Features Provided: pressure tight outlet side
Adjustable Pressure Range: +1.0 to 250.0 pounds per square inch
Maximum Operating Pressure: 250.0 pounds per square inch single response
Material: copper alloy overall
Media For Which Designed: steam 1st response
Media For Which Designed: water-oil-gas 2nd response
Style Designator: angle
Thread Series Designator: npt all ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-289-8206	No Name Available	08/01/1998
4820-00-541-2355	No Name Available	01/01/1963

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
0020-E02-MG0026	Safety Relief Valve
D4792B	Safety Relief Valve
FIG 286 1 1/2 IN	Safety Relief Valve
KUN20-E02-MC	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-801-7850?

The FSCG of the NSN 4820-00-801-7850 is 4820

Does the NSN 4820-00-801-7850 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-801-7850 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 4820-00-801-7850 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-801-7850 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 4820-00-801-7850 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963