4820-00-257-4688

Find complete technical information, availability, and procurement data for: 4820-00-257-4688
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-257-4688

Item Name Code

05483

Assigment Date

03/29/1971 (55 years ago)

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

inside spring bonnet type, right-hand all ends thread direction, disk flow control device, 0.125 inches all ends nominal pipe size accommodated, threaded bonnet attachment 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: 0.125 inches all ends
Thread Direction: right-hand all ends
Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: threaded
Maximum Operating Temp: 200.0 fahrenheit single response
Connection Style: plain (pipe) all ends
Valve Operation Method: manual
Connection Type: threaded external pipe all ends
Mounting Facility: bulkhead
Thread Quantity Per Inch: 27 all ends
Maximum Operating Pressure: 200.0 pounds per square inch single response
Nominal Thread Size: 0.125 inches all ends
Material: copper alloy overall
Material Document And Classification: astm b62 alloy 836 assn std single material response body
Material Document And Classification: astm b62 alloy 836 assn std single material response stem
Material Document And Classification: "astm buna "n" o-ring assn std single material response flow control device"
Material Document And Classification: "astm buna "n" o-ring assn std single material response packing"
Media For Which Designed: fuel/oil, hydrocarbon single response
Style Designator: angle
Thread Series Designator: npt all 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
11290873-1	Angle Valve
1521M2B	Angle Valve
1523M2B	Angle Valve

FAQs

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

What is the FSCG of the NSN 4820-00-257-4688?

The FSCG of the NSN 4820-00-257-4688 is 4820

Does the NSN 4820-00-257-4688 have a Schedule B code assigned?

Yes, the Schedule B code is 8481801095

Does NSN 4820-00-257-4688 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 4820-00-257-4688 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-257-4688 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 4820-00-257-4688 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Mon, Mar 29, 1971