4820-01-433-1281

Find complete technical information, availability, and procurement data for: 4820-01-433-1281
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-433-1281

Item Name Code

20962

Assigment Date

06/21/1996 (30 years ago)

A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes:regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.

manual valve operation method, flange all ends connection type, round with holes all ends flange shape, 4 all ends bolt hole quantity, strategic sealift conversion ships class end item identification

Product Characteristics

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

Bolt Hole Quantity: 4 all ends
End Item Identification: strategic sealift conversion ships class
Valve Operation Method: manual
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 0.750 inches
Maximum Operating Pressure: 285.0 pounds per square inch single response
Nominal Outside Diameter: 3.875 inches all ends
Face To Face Distance: 4.625 inches
Nominal Thickness: 0.500 inches all ends
Bolt Hole Nominal Diameter: 0.625 inches all ends
Bolt Circle Nominal Diameter: 2.750 inches all ends
Flange Face Design: raised straight all ends
Raised Face Nominal Height: 0.062 inches all ends
Raised Face Nominal Diameter: 1.688 inches all ends
Material: steel comp 316 flow control device
Material: steel comp 316 stem
Material: steel uns j03002 body
Media For Which Designed: water-oil-gas single response
Style Designator: straight thru flanged ends

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
88-144-01	Ball Valve
F-7014ASM IT-21	Ball Valve

FAQs

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

What is the FSCG of the NSN 4820-01-433-1281?

The FSCG of the NSN 4820-01-433-1281 is 4820

Does the NSN 4820-01-433-1281 have a Schedule B code assigned?

Yes, the Schedule B code is 8481803070

Does NSN 4820-01-433-1281 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 4820-01-433-1281 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-433-1281 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 4820-01-433-1281 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Fri, Jun 21, 1996