FM1-2-250K

View detailed technical data, stock status, and sourcing information for: FM1-2-250K
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5905 Resistor

National Stock Number

5905-00-665-8896

Item Name Code

37403

Assigment Date

01/01/1963 (63 years ago)

A resistor whose ohmic value cannot be adjusted or varied. The resistance element consists of high resistance wire (or ribbon) either wound on an insulated form or constructed so as to be self-supporting. The item must have inherent characteristics of inducing self-inductance. Opposition to current flow is an inherent property of the resistance wire and is manifested by the heat dissipation in the resistor. Exclut s suppressor, ignition interference. See also resistor (1), fixed, wire wound, noninductive.

-10.000 to 10.000 resistance tolerance in percent, -100.0 to 100.0 temp coefficient of resistance in ppm per deg celsius, -55.0 to 140.0 temp range of temp coefficient in deg celsius, 140.0 ambient temp in deg celsius at zero percent rated power, 25.000 ohms electrical resistance

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: -100.0 to 100.0
Electrical Resistance: 25.000 ohms
Resistance Tolerance In Percent: -10.000 to 10.000
Ambient Temp In Deg Celsius At Zero Percent Rated Power: 140.0
Temp Range Of Temp Coefficient In Deg Celsius: -55.0 to 140.0
Reliability Indicator: not established
Terminal Length: 0.406 inches nominal
Body Length: 2.000 inches nominal
Body Width: 0.688 inches nominal
Body Height: 0.312 inches nominal
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length: 2.500 inches nominal
Power Dissipation Rating In Watts: 3.900 free air
Ambient Temp At Full Rated Power: 40.0 celsius
Terminal Width: 0.188 inches nominal
Inclosure Type: encapsulated
Terminal Type: tab, solder lug
Style Designator: terminals one edge

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
FM1-2-250K	Resistor,fixed,wire Wound,induct
MW2-250HMP0RM10PCT	Resistor,fixed,wire Wound,induct

FAQs

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

What is the FSCG of the NSN 5905-00-665-8896?

The FSCG of the NSN 5905-00-665-8896 is 5905

Does the NSN 5905-00-665-8896 have a Schedule B code assigned?

Yes, the Schedule B code is 8533390080

Does NSN 5905-00-665-8896 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 5905-00-665-8896 contain precious materials?

Precious metal content is unknown

Does NSN 5905-00-665-8896 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 5905-00-665-8896 was assigned to the Federal Catalog?

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