4820-01-495-3788

Find complete technical information, availability, and procurement data for: 4820-01-495-3788
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-495-3788

Item Name Code

05488

Assigment Date

03/14/2002 (24 years ago)

1.500 inches 2nd end nominal pipe size accommodated, disk flow control device, 1.500 inches 1st end nominal pipe size accommodated, bolted bonnet attachment method, spring disk loading method

Product Characteristics

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

Nominal Pipe Size Accommodated: 1.500 inches 1st end
Nominal Pipe Size Accommodated: 1.500 inches 2nd end
Flow Control Device: disk
Bonnet Attachment Method: bolted
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
Mounting Facility: bracket
Valve Size: 2.500 inches
Adjustable Pressure Range: +156.0 to 183.0 pounds per square inch
Nominal Outside Diameter: 5.000 inches 2nd end
Nominal Outside Diameter: 7.000 inches 1st end
Nominal Thickness: 0.562 inches 2nd end
Nominal Thickness: 0.625 inches 1st end
First Connection Face To Centerline Distance: 3.875 inches
Bolt Hole Nominal Diameter: 0.625 inches 2nd end
Bolt Hole Nominal Diameter: 0.750 inches 1st end
Second Connection Face To Centerline Distance: 3.875 inches
Bolt Circle Nominal Diameter: 3.875 inches 2nd end
Bolt Circle Nominal Diameter: 5.500 inches 1st end
Flange Face Design: plain 1st end
Flange Face Design: plain 2nd end
Part Name Assigned By Controlling Agency: steel relief valve 1 1/2 x 2 1/2 g oriface
Special Features: flange faces plain w/raised faces, approx 1/16in
Material: steel body
Material: steel corrosion resisting flow control device
Material: steel corrosion resisting stem
Material Document And Classification: astm-a-216-gradewcb assn std single material response body
Material Document And Classification: astm-a-276-gr-304 assn std single material response flow control device
Material Document And Classification: astm-a-582 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
DB-10G 156T183PSI, CD 17024	Safety Relief Valve
NMP-1537	Safety Relief Valve
NMP-1537 DB-1OG 156-183PSI	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-495-3788?

The FSCG of the NSN 4820-01-495-3788 is 4820

Does the NSN 4820-01-495-3788 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-495-3788 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 4820-01-495-3788 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-495-3788 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 4820-01-495-3788 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Thu, Mar 14, 2002