4820-01-121-9546

Find complete technical information, availability, and procurement data for: 4820-01-121-9546
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-121-9546

Item Name Code

77777

Assigment Date

11/11/1981 (44 years ago)

manual operator assembly 3 port valve model 2640-635-10 end item identification, material bronze,mil-b-23921;11.500 in. od;1.125 in. id;1.719 in. thk;ten 0.281 in. dia holes equally spaced on a 11.000 in. dia bolt circle;four 0.125 in. dia holes equally spaced on a 8.000 in. dia bolt circle;three threaded holes equally spaced on a 1.750 in. dia bolt circle 8-32 unc 2b thds;one threaded hole 0.125-18 nptf internal pipe thds set at a 45 deg angle general characteristics item description

Product Characteristics

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

End Item Identification: manual operator assembly 3 port valve model 2640-635-10
General Characteristics Item Description: material bronze,mil-b-23921;11.500 in. od;1.125 in. id;1.719 in. thk;ten 0.281 in. dia holes equally spaced on a 11.000 in. dia bolt circle;four 0.125 in. dia holes equally spaced on a 8.000 in. dia bolt circle;three threaded holes equally spaced on a 1.750 in. dia bolt circle 8-32 unc 2b thds;one threaded hole 0.125-18 nptf internal pipe thds set at a 45 deg angle

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
2640-635-10 ITEM 2	Valve Operator Cover

FAQs

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

What is the FSCG of the NSN 4820-01-121-9546?

The FSCG of the NSN 4820-01-121-9546 is 4820

Does NSN 4820-01-121-9546 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-01-121-9546 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-121-9546 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 4820-01-121-9546 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Wed, Nov 11, 1981