4820-01-218-7949

Find complete technical information, availability, and procurement data for: 4820-01-218-7949
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-218-7949

Item Name Code

05490

Assigment Date

10/18/1985 (40 years ago)

A valve having a flat or tapered disk (gate) which moves transversely to the axis of flow by rotating or sliding movements of the stem to open or close the orifice. It may also contain an oval or rectangular shaped slide which may be manually, motor, or pressure operated through the means of an arm or arm assembly. The body flange may be designed to accommodate tube type connectors. It may or may not contain thermal relief features. Includes valve (gate) specifically designed for the control of fluid systems in aircraft or missiles.

2a all ends thread class, 20 all ends thread quantity per inch, automatic valve operation method, threaded external tube all ends connection type, compression (tube) all ends connection style

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 all ends
Connection Style: compression (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Thread Quantity Per Inch: 20 all ends
Nominal Thread Size: 0.688 inches all ends
Seat Nominal Radius: 0.047 inches all ends
Material: copper alloy body
Material Document And Classification: astm b145-63 assn std single material response body
Media For Which Designed: air single response
Thread Series Designator: un 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
65-30	Plug Valve
65-30-6	Plug Valve
A-4000-130	Plug Valve

FAQs

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

What is the FSCG of the NSN 4820-01-218-7949?

The FSCG of the NSN 4820-01-218-7949 is 4820

Does NSN 4820-01-218-7949 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 4820-01-218-7949 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-218-7949 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 4820-01-218-7949 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Fri, Oct 18, 1985