National Stock Number
5905-01-202-1089
National Stock Number (NSN) 5905-01-202-1089, or NIIN 012021089, (resistor,variable,hybrid) was assigned February 27, 1985 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 35479. [A_RESISTOR_IN_WHICH_A_SLIDING_OR_ROLLING_CONTACT_MOVES_OVER_AN_EXPOSED_AREA_OF_THE_RESISTIVE_ELEMENT._UNIFORM_CONTACT_PRESSURE_ON_THE_RESISTANCE_ELEMENT_IS_MAINTAINED_BY_POSITIVE_PRESSURE_TO_PERMIT_SMOOTH_ELECTRICAL_AND_MECHANICAL_CONTROL_OF_THE_RESISTOR_OVER_THE_ENTIRE_RESISTANCE_RANGE._THE_RESISTIVE_ELEMENT_IS_CONSTRUCTED_OF_A_COMBINATION_OF_TWO_MATERIALS_USUALLY_CONSISTING_OF_A_WIREWOUND_ELEMENT_WITH_A_COATING_OF_CONDUCTIVE_PLASTIC_APPLIED_OVER_THE_RESISTANCE_WIRE_WHERE_THE_SLIDER_MAKES_CONTACT._MAY_BE_CONSTRUCTED_OF_A_SINGLE_OR_MULTITURNS_OF_WIRE_SUPPORTED_ON_AN_INSULATING_STRUCTURE_ON_WHICH_THE_WIPER_CONTACTS_THE_COATED_WIRE_CONTINUOUSLY_IN_THE_DIRECTION_OF_WIPER_TRAVEL._THE_OPPOSITION_TO_THE_FLOW_OF_CURRENT_IS_AN_INHERENT_PROPERTY_OF_THE_WIRE_USED_AND_IS_MANIFESTED_IN_THE_HEAT_DISSIPATED_IN_THE_RESISTOR_ITSELF._FOR_ITEMS_HAVING_MANUALLY_POSITIONED_TAPS_DESIGNED_TO_BE_SET_AND_FIXED_PRIOR_TO_USE,_SEE_RESISTOR,_ADJUSTABLE._FOR_ITEMS_WITH_STEP_BY_STEP_VARIATION,_SEE_RHEOSTAT;_AND_RESISTOR,_STEP_BY_STEP._FOR_TANDEM-MOUNTED_ITEMS_DESIGNED_TO_FUNCTION TOGETHER AS AN ATTENUATOR (AND RATED ACCORDINGLY), SEE ATTENUATOR, VARIABLE. EXCLUDES:OTHER RESISTOR (1), VARIABLE, (AS MODIFIED).]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5905012021089 does not contain precious metals.
This NSN is associated to Schedule B 8533400080: variable resistors, including potentiometers, nesoi. The Schedule B End Use is listed as electric apparatus.
This information was last updated on Aug 01, 2025.