4820-00-911-7988

Find complete technical information, availability, and procurement data for: 4820-00-911-7988
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-911-7988

Item Name Code

05488

Assigment Date

01/01/1960 (66 years ago)

A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.

inside spring bonnet type, disk flow control device, 2a 1st end thread class, threaded bonnet attachment method, right-hand 1st end thread direction

Product Characteristics

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

Thread Class: 2a 1st end
Thread Direction: right-hand 1st end
Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: threaded
Disk Loading Method: spring
Connection Style: external seat for gasket seal (boss) 1st end
Valve Operation Method: automatic
Connection Type: threaded external boss 1st end
Features Provided: bonnet packing
Thread Quantity Per Inch: 12 1st end
Nominal Thread Size: 1.625 inches 1st end
Material: steel comp 303 body
Material: steel comp 303 seat
Material: steel comp 303 stem
Material Document And Classification: fed std 66 fed std single material response body
Material Document And Classification: fed std 66 fed std single material response seat
Material Document And Classification: fed std 66 fed std single material response stem
Style Designator: straight thru
Thread Series Designator: un 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
103466-01	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-911-7988?

The FSCG of the NSN 4820-00-911-7988 is 4820

Does the NSN 4820-00-911-7988 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-911-7988 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 4820-00-911-7988 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-911-7988 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 4820-00-911-7988 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960