RC20GF681K

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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5905 Resistor

National Stock Number

5905-00-256-0387

Item Name Code

00126

Assigment Date

01/01/1963 (63 years ago)

A resistor whose ohmic value cannot be adjusted or varied. The resistance element consists of a mixture of carbon, an insulating material, and suitable binders, either molded together or applied as a thin layer of conducting material on an insulated form. The opposition to the flow of current is an inherent property of the materials used and is manifest by the heat dissipation in the item itself. See also attenuator,fixed; resistor,fixed,film; and resistor,thermal. Excludes:suppressor,ignition interference.

680.000 ohms electrical resistance, -10.000 to 10.000 resistance tolerance in percent, not established reliability indicator, 130.0 ambient temp in deg celsius at zero percent rated power, 0.138 inches nominal body diameter

Product Characteristics

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

Electrical Resistance: 680.000 ohms
Resistance Tolerance In Percent: -10.000 to 10.000
Ambient Temp In Deg Celsius At Zero Percent Rated Power: 130.0
Reliability Indicator: not established
Body Diameter: 0.138 inches nominal
Body Length: 0.375 inches nominal
Power Dissipation Rating In Watts: 0.500 free air
Ambient Temp At Full Rated Power: 70.0 celsius
Inclosure Type: encapsulated
Terminal Type: wire lead
Style Designator: axial terminal each end
Test Data Document: "81349-mil-r-11 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."

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
280-1145P68	Composition Fixed Resistor
MS35043-12	Composition Fixed Resistor
RC20GF681K	Composition Fixed Resistor
RES 680U00 010% 0,50W AG04X010	Composition Fixed Resistor
TR643	Composition Fixed Resistor

FAQs

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

What is the FSCG of the NSN 5905-00-256-0387?

The FSCG of the NSN 5905-00-256-0387 is 5905

Does the NSN 5905-00-256-0387 have a Schedule B code assigned?

Yes, the Schedule B code is 8533290000

Does NSN 5905-00-256-0387 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 5905-00-256-0387 contain precious materials?

Precious metal content is unknown

Does NSN 5905-00-256-0387 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 5905-00-256-0387 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963