4820-01-633-6668

Find complete technical information, availability, and procurement data for: 4820-01-633-6668
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-633-6668

Item Name Code

77777

Assigment Date

11/28/2014 (11 years ago)

A circular item, usually having a flat or grooved flange, boss(es), and/or counterbore, designed to accommodate the end of the spring. It is used to position the spring but does not encase the spring or restrain lateral motion. It may be used in conjunction with a retainer,helical compression spring. Excludes:washer (as modified), seat,ball socket, and holder,spring. See also rotor,engine poppet valve.

material controlled iaw ss800-ag-man-010/p9290 system certification procedures and criteria manual for deep submergence systems and requires cleaning, packing, and marking iaw mil-std-1622 or mil-std-1330 as deemed applicable; critical item for safety and survival of deep submergence research and rescue vehicals as differentiated by special test features reference number differentiating characteristics, pressure,relief dev part name assigned by controlling agency, zzzy criticality code justification

Product Characteristics

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

Criticality Code Justification: zzzy
Part Name Assigned By Controlling Agency: pressure,relief dev
Reference Number Differentiating Characteristics: material controlled iaw ss800-ag-man-010/p9290 system certification procedures and criteria manual for deep submergence systems and requires cleaning, packing, and marking iaw mil-std-1622 or mil-std-1330 as deemed applicable; critical item for safety and survival of deep submergence research and rescue vehicals as differentiated by special test features

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
7550478-A61	Relief Pressure
7550478-A61D0	Relief Pressure
G547-0002-A61	Relief Pressure
G547-0002-A61D0	Relief Pressure

FAQs

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

What is the FSCG of the NSN 4820-01-633-6668?

The FSCG of the NSN 4820-01-633-6668 is 4820

Does NSN 4820-01-633-6668 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 4820-01-633-6668 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-633-6668 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 4820-01-633-6668 was assigned to the Federal Catalog?

It was assigned 11 years ago, on Fri, Nov 28, 2014