4820-01-421-1690

Find complete technical information, availability, and procurement data for: 4820-01-421-1690
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-421-1690

Item Name Code

45505

Assigment Date

11/02/1995 (30 years ago)

A manually or power operated valve having three or more ports. The direction of the flow through the various ports is controlled by either one or more reciprocating slide(s) or spool(s) with recess areas which mate with ports in an integral or replaceable ported sleeve, or one or more poppet(s). It is designed to change the direction of fluid flow from one valve port to another. An off (no flow) position is not a flow pattern. The valve is designed to actuate various components of a fluid system. A power operated valve may have a manual override. For items which stop, start, or change the flow of fluid, see: valve, solenoid. Excludes:valve, plug. See also servovalve, hydraulic; body section, working, linear directional control valve; and valve assembly.

seawolf class ssn end item identification

Product Characteristics

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

End Item Identification: seawolf class ssn

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
21308 FIND 4	Directional Con Sleeve and Slide
21312 FIND 2	Directional Con Sleeve and Slide
21312-850-1	Directional Con Sleeve and Slide
21832 FIND 6	Directional Con Sleeve and Slide

FAQs

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

What is the FSCG of the NSN 4820-01-421-1690?

The FSCG of the NSN 4820-01-421-1690 is 4820

Does the NSN 4820-01-421-1690 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-421-1690 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 4820-01-421-1690 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-421-1690 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 4820-01-421-1690 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Thu, Nov 2, 1995