4820-00-287-4050

Find complete technical information, availability, and procurement data for: 4820-00-287-4050
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-287-4050

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

8 1st end bolt hole quantity, 8 2nd end bolt hole quantity, spring disk loading method, 32000.0 pounds per hour valve discharge flow rate, round with holes 1st end flange shape

Product Characteristics

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

Disk Loading Method: spring
Valve Discharge Flow Rate: 32000.0 pounds per hour
Bolt Hole Quantity: 8 1st end
Bolt Hole Quantity: 8 2nd end
Flange Shape: round with holes 1st end
Flange Shape: round with holes 2nd end
Connection Type: flange 1st end
Connection Type: flange 2nd end
Maximum Operating Pressure: 600.0 pounds per square inch single response
Opening Pressure Setting: 444.0 pounds per square inch
Nominal Outside Diameter: 8.250 inches 1st end
Nominal Outside Diameter: 9.000 inches 2nd end
Bolt Hole Nominal Diameter: 0.750 inches 2nd end
Bolt Hole Nominal Diameter: 0.875 inches 1st end
Bolt Circle Nominal Diameter: 6.625 inches 1st end
Bolt Circle Nominal Diameter: 7.500 inches 2nd end
Flange Face Design: plain 2nd end
Flange Face Design: raised straight 1st end
Special Features: w/lifting lever
Material: steel body
Material: steel corrosion resisting stem
Material: steel seat
Media For Which Designed: steam single 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
R5885LY	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-287-4050?

The FSCG of the NSN 4820-00-287-4050 is 4820

Does the NSN 4820-00-287-4050 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-287-4050 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 4820-00-287-4050 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-287-4050 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 4820-00-287-4050 was assigned to the Federal Catalog?

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