4820-01-448-4604

Find complete technical information, availability, and procurement data for: 4820-01-448-4604
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-448-4604

Item Name Code

05488

Assigment Date

08/29/1997 (28 years ago)

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

bolted bonnet attachment method, disk flow control device, inside spring bonnet type, spring disk loading method, 12 1st 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.

Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: bolted
Disk Loading Method: spring
Bolt Hole Quantity: 12 1st end
Bolt Hole Quantity: 8 2nd end
Maximum Operating Temp: 100.0 fahrenheit single response
End Item Identification: nimitz class cvn
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 6.000 inches
Adjustable Pressure Range: +741.0 to 815.0 pounds per square inch
Maximum Operating Pressure: 1000.0 pounds per square inch single response
Nominal Outside Diameter: 10.750 inches 2nd end
Nominal Outside Diameter: 12.500 inches 1st end
Nominal Thickness: 1.250 inches 2nd end
Nominal Thickness: 1.375 inches 1st end
First Connection Face To Centerline Distance: 10.438 inches
Bolt Hole Nominal Diameter: 0.875 inches 1st end
Bolt Hole Nominal Diameter: 1.000 inches 2nd end
Second Connection Face To Centerline Distance: 8.875 inches
Bolt Circle Nominal Diameter: 10.625 inches 1st end
Bolt Circle Nominal Diameter: 8.500 inches 2nd end
Flange Face Design: raised straight all ends
Raised Face Nominal Height: 0.062 inches 1st end
Raised Face Nominal Height: 0.688 inches 2nd end
Raised Face Nominal Diameter: 6.188 inches 2nd end
Raised Face Nominal Diameter: 8.500 inches 1st end
Material: steel comp 416 stem
Material: steel comp 630 flow control device
Material: steel uns j03002 body
Material Document And Classification: astm a216, grade wcb assn std single material response body
Material Document And Classification: astm a564, grade 630 assn std single material response flow control device
Material Document And Classification: astm a582, type 416, cond a assn std single material response stem
Style Designator: angle 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
DB52P NMP1528 7	Safety Relief Valve
NMP1528G01S0741	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-448-4604?

The FSCG of the NSN 4820-01-448-4604 is 4820

Does the NSN 4820-01-448-4604 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-448-4604 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 4820-01-448-4604 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-448-4604 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 4820-01-448-4604 was assigned to the Federal Catalog?

It was assigned 28 years ago, on Fri, Aug 29, 1997