HH2-CID882111942

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-287-6078

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

right-hand 1st end thread direction, inside spring bonnet type, bolted bonnet attachment method, spring disk loading method, disk 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.

Thread Direction: right-hand 1st end
Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: bolted
Disk Loading Method: spring
Bolt Hole Quantity: 4 2nd end
Maximum Operating Temp: 406.0 fahrenheit single response
Connection Style: plain,optional end(pipe) 1st end
Valve Operation Method: automatic
Flange Shape: round with holes 2nd end
Connection Type: flange 2nd end
Connection Type: threaded internal pipe 1st end
Features Provided: pressure tight outlet side
Adjustable Pressure Range: +13.0 to 20.0 pounds per square inch
Maximum Operating Pressure: 100.0 pounds per square inch single response
Nominal Thread Size: 1.250 inches 1st end
Nominal Outside Diameter: 4.250 inches 2nd end
Nominal Thickness: 0.475 inches 2nd end
Bolt Hole Nominal Diameter: 0.562 inches 2nd end
Bolt Circle Nominal Diameter: 3.125 inches 2nd end
Flange Face Design: plain 2nd end
Special Features: w/lifting lever
Material: copper alloy overall
Media For Which Designed: steam single response
Style Designator: angle
Thread Series Designator: npt 1st end

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
HH2-CID882111942	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-287-6078?

The FSCG of the NSN 4820-00-287-6078 is 4820

Does the NSN 4820-00-287-6078 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-287-6078 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 4820-00-287-6078 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-287-6078 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 4820-00-287-6078 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963