4820-00-549-4783

Find complete technical information, availability, and procurement data for: 4820-00-549-4783
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-549-4783

Item Name Code

05488

Assigment Date

10/18/1974 (51 years ago)

A cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. It may be a one-piece casting or composed of two or more separate items firmly held together by welding, rivets, pins, or the like, to form a single unit. It is designed to mount on a shaft. For items consisting of a shaft with an integral complement(s) or gear teeth, see gearshaft (as modified). Excludes:gear subassembly, speed decreaser.

plain (tube) all ends connection style, spring disk loading method, poppet flow control device, right-hand all ends thread direction, 2a all ends thread class

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
Thread Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Connection Style: plain (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Nominal Thread Size: 0.375 inches all ends
Opening Pressure Setting: 440.0 pounds per square inch
Style Designator: straight thru
Thread Series Designator: unf 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
2FX13	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-549-4783?

The FSCG of the NSN 4820-00-549-4783 is 4820

Does the NSN 4820-00-549-4783 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-549-4783 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 4820-00-549-4783 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-549-4783 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 4820-00-549-4783 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Fri, Oct 18, 1974