MF4E4991F

View detailed technical data, stock status, and sourcing information for: MF4E4991F

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MF4E4991F
Federal Supply Group
Electrical and Electronic Equipment Components
Federal Supply Classification
5905 Resistor
National Stock Number
5905-00-421-2940
Item Name Code
05311
Assigment Date
12/16/1970 (55 years ago)

A resistor whose ohmic value cannot be adjusted or varied. The resistance element consists of either a thin layer of conductive material, containing either binders or insulating materials, deposited on an insulated form; or an alloy of metal and ceramic materials, usually fused to an insulated form. Opposition to the flow of current is an inherent property of the materials used and is manifest by the heat dissipation in the resistor. See also attenuator, fixed and resistor, fixed, composition. Excludes:carbon composition type resistors.

175.0 ambient temp in deg celsius at zero percent rated power, -1.000 to 1.000 resistance tolerance in percent, -55.0 to 175.0 temp range of temp coefficient in deg celsius, 4.990 kilohms electrical resistance, -25.0 to 25.0 temp coefficient of resistance in ppm per deg celsius

Product Characteristics

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

Temp Coefficient Of Resistance In Ppm Per Deg Celsius
-25.0 to 25.0
Electrical Resistance
4.990 kilohms
Resistance Tolerance In Percent
-1.000 to 1.000
Ambient Temp In Deg Celsius At Zero Percent Rated Power
175.0
Temp Range Of Temp Coefficient In Deg Celsius
-55.0 to 175.0
Reliability Indicator
established
Reliability Failure Rate Level In Percent
0.001
Terminal Length
1.500 inches nominal
Body Diameter
0.109 inches nominal
Body Length
0.250 inches nominal
Power Dissipation Rating In Watts
0.100 free air
Ambient Temp At Full Rated Power
125.0 celsius
Inclosure Type
encapsulated
Terminal Type
wire lead
Style Designator
axial terminal each end
Test Data Document
"81349-milr55182 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.)."
Specification/Standard Data
81349-mil-r-55182/1 government specification

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5905-01-020-9188 No Name Available 11/01/1991
5905-01-026-2122 No Name Available 05/01/2008

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
0698-6338 Film Fixed Resistor
115-2401 Film Fixed Resistor
443-1852-193 Film Fixed Resistor
538029-6259 Film Fixed Resistor
560529 Film Fixed Resistor
586055-187 Film Fixed Resistor
724-0623-970 Film Fixed Resistor
CMF554991F Film Fixed Resistor
ERC55-15-193 Film Fixed Resistor
MF4E4991F Film Fixed Resistor
RNC55J4991FM Film Fixed Resistor
RNC55J4991FP Film Fixed Resistor
RNC55J4991FR Film Fixed Resistor
RNC55J4991FS Film Fixed Resistor
RNR55J4991FM Film Fixed Resistor
RNR55J4991FP Film Fixed Resistor
RNR55J4991FR Film Fixed Resistor

FAQs

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

What is the FSCG of the NSN 5905-00-421-2940?
The FSCG of the NSN 5905-00-421-2940 is 5905
Does the NSN 5905-00-421-2940 have a Schedule B code assigned?
Yes, the Schedule B code is 8533100042
Does NSN 5905-00-421-2940 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 5905-00-421-2940 contain precious materials?
Precious metal content is unknown
Does NSN 5905-00-421-2940 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 5905-00-421-2940 was assigned to the Federal Catalog?
It was assigned 55 years ago, on Wed, Dec 16, 1970

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