803-6397434-311111

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-478-7621

Item Name Code

42174

Assigment Date

09/26/2000 (25 years ago)

An item with an integral shaft designed to convert rotary motion into linear motion for the purpose of energizing the shoes of a vehicular brake system.

0.250 inches all ends nominal pipe size accommodated, inside screw bonnet type, threaded bonnet attachment method, socket (pipe) all ends connection style, 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.

Nominal Pipe Size Accommodated: 0.250 inches all ends
Flow Control Device: disk
Bonnet Type: inside screw
Bonnet Attachment Method: threaded
Connection Style: socket (pipe) all ends
Valve Operation Method: manual
Connection Type: unthreaded internal pipe all ends
Special Features: packing (o-ring) material mil-r-83248, class 1; end preparation socket weld; disc seal material mil-p-46036, type 1
Material: nickel alloy body
Style Designator: straight thru

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
803-6397434-311111	Globe-Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-478-7621?

The FSCG of the NSN 4820-01-478-7621 is 4820

Does the NSN 4820-01-478-7621 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-01-478-7621 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 4820-01-478-7621 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-478-7621 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 4820-01-478-7621 was assigned to the Federal Catalog?

It was assigned 25 years ago, on Tue, Sep 26, 2000