C8958-1-20

View detailed technical data, stock status, and sourcing information for: C8958-1-20
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5999 Miscellaneous Electrical and Electronic Components

National Stock Number

5999-01-112-5305

Item Name Code

20281

Assigment Date

05/06/1981 (45 years ago)

A device which allows radio frequency energy to pass in one direction with very little power loss, but blocks the flow of energy in the other direction by means of multiple wave-polarization or an integral dissipative load. It isolates frequency sensitive circuity from the effects of reflected radio frequency energy resulting from component mismatch. It usually has one or more ports terminated with coaxial connector(s) and/or waveguide flange(s); or other electrical terminations. Isolators designed for internal use in waveguide runs may consist of rods, rings, chips, strips and the like and have no ports or terminations. See also diplexer; duplexer. Excludes:circulator, radio frequency.

1.438 inches nominal overall length, 1.188 inches nominal center to center distance between bolt holes along width, 0.125 inches nominal hole diameter, 1.438 inches nominal overall width, 1.281 inches nominal aperture diameter

Product Characteristics

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

Hole Diameter: 0.125 inches nominal
Overall Length: 1.438 inches nominal
Overall Width: 1.438 inches nominal
Aperture Diameter: 1.281 inches nominal
Center To Center Distance Between Bolt Holes Along Width: 1.188 inches nominal
Center To Center Distance Between Bolt Holes Along Length: 1.188 inches nominal
Outside Edge To Bolt Hole Center Distance Along Width: 0.125 inches nominal
Outside Edge To Bolt Hole Center Distance Along Length: 0.125 inches nominal
Bolt Hole Quantity: 4
Material: rubber 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
07-0501-3895	Electronic Shielding Gasket
408-1265-20	Electronic Shielding Gasket
5999PL0880952	Electronic Shielding Gasket
5999PL1707701	Electronic Shielding Gasket
C8958-1-20	Electronic Shielding Gasket

FAQs

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

What is the FSCG of the NSN 5999-01-112-5305?

The FSCG of the NSN 5999-01-112-5305 is 5999

Does the NSN 5999-01-112-5305 have a Schedule B code assigned?

Yes, the Schedule B code is 8543909000

Does NSN 5999-01-112-5305 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 5999-01-112-5305 contain precious materials?

Item does not contain precious metal.

Does NSN 5999-01-112-5305 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 5999-01-112-5305 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Wed, May 6, 1981