NSN 5905-00-505-4054, 5905005054054
RESISTOR,VARIABLE,WIRE WOUND,PRE

Federal Supply Classification: FSC 5905 - Resistors
National Item Identification Number: NIIN 005054054
Codification Country: United States
Item Name Code: INC 37408
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

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DLMS^® Summary

National Stock Number 5905-00-505-4054

National Stock Number (NSN) 5905-00-505-4054, or NIIN 005054054, (resistor,variable,wire wound,pre) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 4 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is unique to one weapons system.

This NSN is assigned to Item Name Code (INC) 37408. [A RESISTOR IN WHICH A SLIDING OR ROLLING CONTACT MOVES OVER AN EXPOSED AREA OF THE RESISTIVE ELEMENT TO CHANGE THE OHMIC VALUE OF THE OUTPUT. THE FUNCTIONAL TOLERANCE (LINEARITY) OF THE OUTPUT IS EQUAL TO OR LESS THAN PLUS OR MUNUS 1 PERCENT ON LINEAR OUTPUTS. SPECIFIED OUTPUTS SUCH AS SINE, COSINE, TANGENT, AND THE LIKE, SHALL BE CONSIDERED TO BE PRECISION. 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:RESISTOR (1), VARIABLE, NONWIRE WOUND; NONPRECISION; RESISTOR(1), VARIABLE, NONWIRE WOUND, PRECISION; AND RESISTOR (1), VARIABLE, WIRE WOUND, NONPRECISION.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5905005054054 contains an unknown precious metal.

This NSN is associated to Schedule B 8533390080: wirewound variable resistors, nesoi. The Schedule B End Use is listed as electric apparatus.

This information was last updated on Aug 01, 2025.

Technical Characteristics

FUNCTION CONFORMITY TOLERANCE PER SECTION: (CQFL) -0.50/+0.50 ALL SECTIONS
TAP LOCATION TOLERANCE PER SECTION: (CRKS) -1.0/+1.0 OHMS 2ND SECTION
ACTUATOR TYPE: (AEFD) SINGLE SHAFT
ACTUATOR TRAVEL CONTROL FEATURE: (CRSX) STOPS
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER: (CSDH) 25.0 ALL SECTIONS
BODY DIAMETER: (ABPM) 2.062 INCHES NOMINAL
BODY LENGTH: (ADAQ) 1.891 INCHES MAXIMUM
BODY STYLE: (AAQL) CYLINDRICAL SERVO MOUNTED
EFFECTIVE ELECTRICAL ROTATION IN DEG ANGULAR ROTATION: (AEFH) 310.0 NOMINAL
ELECTRICAL RESISTANCE PER SECTION: (CQCC) 5.000 KILOHMS ALL SECTIONS
FEATURES PROVIDED: (CBBL) NONMETALLIC SHAFT
FIXED TAP QUANTITY PER SECTION: (CRJS) 1 2ND SECTION
FUNCTION CHARACTERISTIC PER SECTION: (CSBX) ALL SECTIONS LINEAR
FUNCTION CONFORMITY PER SECTION: (CRGM) ALL SECTIONS INDEPENDENT LINEARITY
FUNCTION CONFORMITY TOLERANCE PER SECTION: (CQFL) -0.50 TO 0.50 ALL SECTIONS
PILOT DIAMETER: (AAVL) 1.6560 INCHES MAXIMUM
PILOT LENGTH: (AAVM) 0.3100 INCHES NOMINAL
MAXIMUM STARTING TORQUE: (AEFK) 1.00 INCH-OUNCES
MOUNTING LIP DEPTH: (AEDA) 0.0620 INCHES NOMINAL
MOUNTING LIP DIAMETER: (AECZ) 1.9060 INCHES MAXIMUM
MOUNTING METHOD: (AXGY) CLAMP RING
POWER DISSIPATION RATING PER SECTION IN WATTS: (CRGD) 2.5 FREE AIR ALL SECTIONS
RELIABILITY INDICATOR: (AARG) NOT ESTABLISHED
RESISTANCE TOLERANCE PER SECTION IN PERCENT: (CRSS) -5.0 TO 5.0 ALL SECTIONS
ROTARY ACTUATOR TRAVEL IN ANGULAR DEG: (CQCK) 310.0 NOMINAL
SECTION QUANTITY: (AAPN) 2
SHAFT LENGTH: (ABXF) 0.625 INCHES NOMINAL
SHAFT DIAMETER: (ABWV) 0.250 INCHES NOMINAL
SHAFT STYLE: (AEDX) ROUND, SLOTTED
TAP LOCATION FROM CCW TERMINAL PER SECTION IN OHMS: (CSBW) 2500.0 2ND SECTION
TAP LOCATION TOLERANCE PER SECTION: (CRKS) -1.0 TO 1.0 OHMS 2ND SECTION
TERMINAL LOCATION: (APXH) RADIALLY POSITIONED OVER MORE THAN HALF THE CIRCUMFERENCE
TERMINAL TYPE AND QUANTITY: (TTQY) 7 TAB, SOLDER LUG
TEST DATA DOCUMENT: (TEST) 73342-6815441 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
UNDERCUT DIAMETER: (ABPA) 1.906 INCHES MAXIMUM
UNDERCUT WIDTH: (ABPC) 0.0620 INCHES NOMINAL
RESISTANCE TOLERANCE PER SECTION IN PERCENT: (CRSS) -5.0/+5.0 ALL SECTIONS