4820-00-166-0278

Find complete technical information, availability, and procurement data for: 4820-00-166-0278
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-166-0278

Item Name Code

05488

Assigment Date

11/19/1971 (54 years ago)

A microcircuit whose output is a function of the input; that is, the output varies in a predetermined and essentially predictable manner from the input signal.

disk flow control device, exposed spring bonnet type, 8900.0 pounds per hour valve discharge flow rate, spring disk loading method, bolted bonnet attachment method

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: disk
Bonnet Type: exposed spring
Bonnet Attachment Method: bolted
Disk Loading Method: spring
Valve Discharge Flow Rate: 8900.0 pounds per hour
Renewable Seat Ring Type: threaded
Bolt Hole Quantity: 4 2nd end
Bolt Hole Quantity: 8 1st end
Valve Operation Method: automatic or manual
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: pressure tight outlet side
Valve Size: 1.500 inches
Opening Pressure Setting: 700.0 pounds per square inch
Nominal Outside Diameter: 6.125 inches 2nd end
Nominal Outside Diameter: 6.500 inches 1st end
Nominal Thickness: 0.875 inches 2nd end
Nominal Thickness: 0.812 inches 1st end
Bolt Hole Nominal Diameter: 0.750 inches 1st end
Bolt Hole Nominal Diameter: 0.875 inches 2nd end
Bolt Circle Nominal Diameter: 4.500 inches 2nd end
Bolt Circle Nominal Diameter: 5.000 inches 1st end
Flange Face Design: plain 2nd end
Flange Face Design: raised straight 1st end
Raised Face Nominal Height: 0.062 inches 1st end
Raised Face Nominal Diameter: 3.625 inches 1st end
Special Features: the end connection identified above as the second end is the valve inlet
Style Designator: angle flanged ends
Reference Number Differentiating Characteristics: as differentiated by the valve discharge flow rate requirement and as modified by crosby valve and gage co drawing h43589 sheet 2

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-165-1550	No Name Available	03/08/1972
4820-00-172-9121	No Name Available	01/07/1972

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
3176765	Safety Relief Valve
A34153	Safety Relief Valve
A34153 M0D	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-166-0278?

The FSCG of the NSN 4820-00-166-0278 is 4820

Does the NSN 4820-00-166-0278 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-166-0278 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 4820-00-166-0278 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-166-0278 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 4820-00-166-0278 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Fri, Nov 19, 1971