4820-00-287-4128

Find complete technical information, availability, and procurement data for: 4820-00-287-4128
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-287-4128

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

spring disk loading method, 425.0 fahrenheit single response maximum operating temp, 8 1st end bolt hole quantity, 48102.0 pounds per hour valve discharge flow rate, 9 2nd end bolt hole quantity

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: 48102.0 pounds per hour
Bolt Hole Quantity: 9 2nd end
Bolt Hole Quantity: 8 1st end
Maximum Operating Temp: 425.0 fahrenheit single response
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: 524.0 pounds per square inch single response
Opening Pressure Setting: 1340.0 pounds per square inch
Nominal Outside Diameter: 9.250 inches 2nd end
Nominal Outside Diameter: 9.675 inches 1st end
Bolt Hole Nominal Diameter: 0.812 inches 2nd end
Bolt Hole Nominal Diameter: 1.062 inches 1st end
Bolt Circle Nominal Diameter: 7.500 inches 1st end
Bolt Circle Nominal Diameter: 7.688 inches 2nd end
Flange Face Design: plain 1st end
Flange Face Design: plain 2nd end
Special Features: w/lifting lever
Special Test Features: equipped w/rh drain
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
A31549RH	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-287-4128?

The FSCG of the NSN 4820-00-287-4128 is 4820

Does the NSN 4820-00-287-4128 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-287-4128 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 4820-00-287-4128 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-287-4128 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 4820-00-287-4128 was assigned to the Federal Catalog?

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