5999-01-449-4521

Find complete technical information, availability, and procurement data for: 5999-01-449-4521
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5999 Miscellaneous Electrical and Electronic Components

National Stock Number

5999-01-449-4521

Item Name Code

20281

Assigment Date

10/02/1997 (28 years ago)

A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.

4.000 inches nominal outside diameter, circular style designator, emi cross-sectional shape style, steel corrosion resisting emi/rfi conductor material

Product Characteristics

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

Cross-Sectional Shape Style: emi
Outside Diameter: 4.000 inches nominal
Material: steel corrosion resisting emi/rfi conductor
Style Designator: circular

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
1734SS	Electronic Shielding Gasket

FAQs

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

What is the FSCG of the NSN 5999-01-449-4521?

The FSCG of the NSN 5999-01-449-4521 is 5999

Does the NSN 5999-01-449-4521 have a Schedule B code assigned?

Yes, the Schedule B code is 8543909000

Does NSN 5999-01-449-4521 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 5999-01-449-4521 contain precious materials?

Item does not contain precious metal.

Does NSN 5999-01-449-4521 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5999-01-449-4521 was assigned to the Federal Catalog?

It was assigned 28 years ago, on Thu, Oct 2, 1997