4820-00-893-2107

Find complete technical information, availability, and procurement data for: 4820-00-893-2107
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-893-2107

Item Name Code

05488

Assigment Date

01/01/1962 (64 years ago)

spring disk loading method, automatic valve operation method, 4 1st end bolt hole quantity, 4 2nd end bolt hole quantity, poppet flow control device

Product Characteristics

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

Flow Control Device: poppet
Disk Loading Method: spring
Bolt Hole Quantity: 4 1st end
Bolt Hole Quantity: 4 2nd end
Valve Operation Method: automatic
Flange Shape: round with holes 1st end
Flange Shape: round with holes 2nd end
Connection Type: flange 1st end
Connection Type: flange 2nd end
Features Provided: valve stem lock shield
Criticality Code Justification: zzzy
Opening Pressure Setting: 850.0 pounds per square inch
Nominal Outside Diameter: 3.750 inches 1st end
Nominal Outside Diameter: 4.875 inches 2nd end
Bolt Hole Nominal Diameter: 0.625 inches 1st end
Bolt Hole Nominal Diameter: 0.750 inches 2nd end
Bolt Circle Nominal Diameter: 2.625 inches 1st end
Bolt Circle Nominal Diameter: 3.500 inches 2nd end
Flange Face Design: raised straight 1st end
Flange Face Design: raised straight 2nd end
Material: cobalt alloy body lining
Material: nickel alloy flow control device
Material: nickel alloy body
Style Designator: angle
Reference Number Differentiating Characteristics: selected and tested for nuclear propulsion plant systems

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
5330F	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-893-2107?

The FSCG of the NSN 4820-00-893-2107 is 4820

Does the NSN 4820-00-893-2107 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-893-2107 require demilitarization?

Usml or ccl military items - demil required. Item managers,, equipment specialists, or product specialists must furnish special demilinstructions. (note 3).

Does NSN 4820-00-893-2107 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-893-2107 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 4820-00-893-2107 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962