R121-25K

View detailed technical data, stock status, and sourcing information for: R121-25K
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5905 Resistor

National Stock Number

5905-00-921-4696

Item Name Code

37406

Assigment Date

01/02/1966 (60 years ago)

cylindrical bushing mounted body style, not established reliability indicator, 1 section quantity, 0.875 inches nominal body diameter, 0.123 inches minimum and 0.126 inches maximum shaft diameter

Product Characteristics

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

Section Quantity: 1
Body Style: cylindrical bushing mounted
Reliability Indicator: not established
Body Diameter: 0.875 inches nominal
Shaft Diameter: 0.123 inches minimum and 0.126 inches maximum
Shaft Length: 0.625 inches nominal
Mounting Bushing Length: 0.250 inches nominal
Body Length: 0.688 inches nominal
Shaft Style: round, slotted
Actuator Type: single shaft
Nonturn Device Location: at 6 oclock
Nonturn Device Radius: 0.250 inches nominal
Screw Thread Diameter: 0.250 inches nominal
Screw Thread Series Designator: unef
Screw Thread Quantity Per Inch: 32.0
Terminal Location: radially positioned over less than half the circumference
Mounting Method: locking bushing
Electrical Resistance Per Section: 5.0 kilohms single section
Rotary Actuator Travel In Angular Deg: 290.0 minimum and 305.0 maximum
Ambient Temp In Deg Celsius Per Section At Zero Percent Rated Power: 340.0 single section
Power Dissipation Rating Per Section In Watts: 12.5 free air single section
Resistance Tolerance Per Section In Percent: -10.0 to 10.0 single section
Actuator Travel Control Feature: stops
Ambient Temp In Deg Celsius Per Section At Full Rated Power: 25.0 single section
Terminal Type And Quantity: 3 tab, solder lug

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5905-00-872-3005	No Name Available	12/10/1972
5905-00-923-9748	No Name Available	11/20/1967

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
44968-5000	Resistor,variable,wire Wound,non
749-4527-000	Resistor,variable,wire Wound,non
R121-25K	Resistor,variable,wire Wound,non

FAQs

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

What is the FSCG of the NSN 5905-00-921-4696?

The FSCG of the NSN 5905-00-921-4696 is 5905

Does the NSN 5905-00-921-4696 have a Schedule B code assigned?

Yes, the Schedule B code is 8533390080

Does NSN 5905-00-921-4696 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 5905-00-921-4696 contain precious materials?

Precious metal content is unknown

Does NSN 5905-00-921-4696 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 5905-00-921-4696 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Sun, Jan 2, 1966