637-5990-0020

View detailed technical data, stock status, and sourcing information for: 637-5990-0020
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5999 Miscellaneous Electrical and Electronic Components

National Stock Number

5999-01-354-7741

Item Name Code

20281

Assigment Date

03/05/1992 (34 years ago)

A shaped metallic item designed to increase the effectiveness of radio frequency/electromagnetic interference, or a nonmetallic item containing a wire mesh, metal, or other electrically conductive particles designed to provide environmental sealing and radio frequency/electromagnetic interference shielding. For bulk items see wire mesh, knitted or gasketing material, conductive.

1.138 inches minimum and 1.154 inches maximum overall length, 0.110 inches minimum and 0.130 inches maximum hole diameter, 0.875 inches minimum and 0.891 inches maximum aperture diameter, 1.138 inches minimum and 1.154 inches maximum overall width, emi cross-sectional shape style

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
Hole Diameter: 0.110 inches minimum and 0.130 inches maximum
Overall Length: 1.138 inches minimum and 1.154 inches maximum
Overall Width: 1.138 inches minimum and 1.154 inches maximum
Aperture Diameter: 0.875 inches minimum and 0.891 inches maximum
Outside Corner Radius: 0.131 inches minimum and 0.151 inches maximum
Center To Center Distance Between Bolt Holes Along Width: 0.834 inches minimum and 0.854 inches maximum
Center To Center Distance Between Bolt Holes Along Length: 0.834 inches minimum and 0.854 inches maximum
Outside Edge To Bolt Hole Center Distance Along Width: 0.142 inches minimum and 0.160 inches maximum
Outside Edge To Bolt Hole Center Distance Along Length: 0.142 inches minimum and 0.160 inches maximum
Cross-Sectional Height: 0.030 inches nominal
Bolt Hole Quantity: 4
Environmental Protection Material Location: throughout rf shielding gasket
Material: copper alloy emi/rfi conductorrubber silicone class q environmental seal
Style Designator: non-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
637-5990-0020	Electronic Shielding Gasket
6375990-0020	Electronic Shielding Gasket

FAQs

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

What is the FSCG of the NSN 5999-01-354-7741?

The FSCG of the NSN 5999-01-354-7741 is 5999

Does the NSN 5999-01-354-7741 have a Schedule B code assigned?

Yes, the Schedule B code is 8543909000

Does NSN 5999-01-354-7741 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 5999-01-354-7741 contain precious materials?

Item does not contain precious metal.

Does NSN 5999-01-354-7741 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 5999-01-354-7741 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Thu, Mar 5, 1992