NSN 5905-00-072-8531, 5905000728531
RESISTOR,VARIABLE,WIRE WOUND,PRE

Federal Supply Classification: FSC 5905 - Resistors
National Item Identification Number: NIIN 000728531
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 5905-00-072-8531

National Stock Number (NSN) 5905-00-072-8531, or NIIN 000728531, (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 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that 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 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 5905000728531 does not contain precious metals.

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 Jul 01, 2025.

Technical Characteristics

ELECTRICAL RESISTANCE PER SECTION: (CQCC) 10.0 PERCENT, RATED AMPERES C AND BETTER V.G. STEPPING
ELECTRICAL RESISTANCE PER SECTION: (CQCC) 10.0 PERCENT, RATED AMPERES C DROP SIDING
III OVERALL DIAMETER: (ADAV) 1.453 INCHES NOMINAL
ELECTRICAL RESISTANCE PER SECTION: (CQCC) 100.0 KILOHMS 2ND SECTION
ELECTRICAL RESISTANCE PER SECTION: (CQCC) 9.75 KILOHMS 3RD SECTION
FUNCTION CONFORMITY TOLERANCE PER SECTION: (CQFL) -0.15 TO 0.15 3RD SECTION
RESISTANCE TOLERANCE PER SECTION IN PERCENT: (CRSS) -5.0/+5.0 5TH SECTION
EFFECTIVE ELECTRICAL ROTATION IN DEG ANGULAR ROTATION: (AEFH) 354.0 NOMINAL
ELECTRICAL RESISTANCE PER SECTION: (CQCC) 14.6 KILOHMS 1ST SECTION AND 100.0 KILOHMS 2ND SECTION AND 9.75 KILOHMS 3RD SECTION AND 10.0 KILOHMS 4TH SECTION AND 10.0 KILOHMS 5TH SECTION
ACTUATOR TRAVEL CONTROL FEATURE: (CRSX) CONTINUOUS MOTION
ACTUATOR TYPE: (AEFD) DOUBLE ENDED SHAFT
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER: (CSDH) 40.0 ALL SECTIONS
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER: (CQGN) 125.0 ALL SECTIONS
BEARING TYPE: (BYDT) BALL SHAFT
BODY DIAMETER: (ABPM) 1.453 INCHES NOMINAL
BODY LENGTH: (ADAQ) 3.128 INCHES MAXIMUM
BODY STYLE: (AAQL) CYLINDRICAL SERVO MOUNTED
FIXED TAP QUANTITY PER SECTION: (CRJS) 1 3RD SECTION
FUNCTION CHARACTERISTIC PER SECTION: (CSBX) ALL SECTIONS LINEAR
FUNCTION CONFORMITY PER SECTION: (CRGM) ALL SECTIONS INDEPENDENT LINEARITY
FUNCTION CONFORMITY TOLERANCE PER SECTION: (CQFL) -0.25 TO 0.25 1ST SECTION AND -0.20 TO 0.20 2ND SECTION AND -0.15 TO 0.15 3RD SECTION AND -4.00 TO 4.00 4TH SECTION AND -4.00 TO 4.00 5TH SECTION
OVERALL DIAMETER: (ADAV) 1.453 INCHES NOMINAL
OVERALL LENGTH: (ABHP) 3.847 INCHES MAXIMUM
MAXIMUM RUNNING TORQUE: (AEFL) 2.60 INCH-OUNCES
MAXIMUM STARTING TORQUE: (AEFK) 3.10 INCH-OUNCES
MOUNTING LIP DEPTH: (AEDA) 0.0930 INCHES NOMINAL
MOUNTING LIP DIAMETER: (AECZ) 1.4380 INCHES NOMINAL
MOUNTING METHOD: (AXGY) CLAMP RING
PILOT LENGTH: (AAVM) 0.0620 INCHES NOMINAL
PILOT DIAMETER: (AAVL) 1.3115 INCHES MINIMUM AND 1.3120 INCHES MAXIMUM
POWER DISSIPATION RATING PER SECTION IN WATTS: (CRGD) 2.0 FREE AIR ALL SECTIONS
RELIABILITY INDICATOR: (AARG) NOT ESTABLISHED
RESISTANCE TOLERANCE PER SECTION IN PERCENT: (CRSS) -1.0 TO 1.0 1ST SECTION AND -5.0 TO 5.0 2ND SECTION AND -5.0 TO 5.0 3RD SECTION AND -5.0 TO 5.0 4TH SECTION AND -5.0 TO 5.0 5TH SECTION
ROTARY ACTUATOR TRAVEL IN ANGULAR DEG: (CQCK) 360.0 NOMINAL
SECTION QUANTITY: (AAPN) 5
SHAFT DIAMETER: (ABWV) 0.250 INCHES NOMINAL
SHAFT LENGTH: (ABXF) 0.750 INCHES NOMINAL
SHAFT RUNOUT: (AEFZ) 0.001 INCHES
SHAFT END PLAY: (AEFY) 0.0025 INCHES
SHAFT STYLE: (AEDX) ROUND, STEPPED
TAP LOCATION FROM CCW TERMINAL PER SECTION IN OHMS: (CSBW) 7300.0 ALL SECTIONS
TERMINAL LOCATION: (APXH) RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE
TERMINAL TYPE AND QUANTITY: (TTQY) 16 TAB, SOLDER LUG
UNDERCUT DIAMETER: (ABPA) 1.438 INCHES NOMINAL
UNDERCUT DIAMETER: (AEDQ) 0.125 INCHES NOMINAL
UNDERCUT LENGTH: (AGQL) 0.375 INCHES NOMINAL
UNDERCUT WIDTH: (ABPC) 0.0730 INCHES MINIMUM
UNABLE TO DECODE: (AEDZ) UNABLE TO DECODE
RESISTANCE TOLERANCE PER SECTION IN PERCENT: (CRSS) -5.0 TO 5.0 3RD SECTION
ELECTRICAL RESISTANCE PER SECTION: (CQCC) 14.6 PERCENT, RATED AMPERES C AND BETTER FINISH
FUNCTION CONFORMITY TOLERANCE PER SECTION: (CQFL) -0.20/+0.20 2ND SECTION
FUNCTION CONFORMITY TOLERANCE PER SECTION: (CQFL) -4.00 TO 4.00 4TH SECTION
ELECTRICAL RESISTANCE PER SECTION: (CQCC) 9.75 PERCENT, RATED AMPERES C AND BETTER SELECT
FUNCTION CONFORMITY TOLERANCE PER SECTION: (CQFL) -4.00 TO 4.00 5TH SECTION
FUNCTION CONFORMITY TOLERANCE PER SECTION: (CQFL) -0.20 TO 0.20 2ND SECTION
III OVERALL LENGTH: (ABHP) 3.847 INCHES MAXIMUM
ELECTRICAL RESISTANCE PER SECTION: (CQCC) 10.0 KILOHMS 4TH SECTION
ELECTRICAL RESISTANCE PER SECTION: (CQCC) 10.0 KILOHMS 5TH SECTION
FUNCTION CONFORMITY TOLERANCE PER SECTION: (CQFL) -0.25/+0.25 1ST SECTION
FUNCTION CONFORMITY TOLERANCE PER SECTION: (CQFL) -4.00/+4.00 4TH SECTION
RESISTANCE TOLERANCE PER SECTION IN PERCENT: (CRSS) -5.0/+5.0 3RD SECTION
FUNCTION CONFORMITY TOLERANCE PER SECTION: (CQFL) -4.00/+4.00 5TH SECTION
RESISTANCE TOLERANCE PER SECTION IN PERCENT: (CRSS) -1.0/+1.0 1ST SECTION
SHAFT BEARING TYPE: (AEDZ) BALL
ELECTRICAL RESISTANCE PER SECTION: (CQCC) 100.0 PERCENT, RATED AMPERES C AND BETTER INDUSTRIAL CLEARS
FUNCTION CONFORMITY TOLERANCE PER SECTION: (CQFL) -0.15/+0.15 3RD SECTION
RESISTANCE TOLERANCE PER SECTION IN PERCENT: (CRSS) -5.0/+5.0 2ND SECTION
RESISTANCE TOLERANCE PER SECTION IN PERCENT: (CRSS) -5.0/+5.0 4TH SECTION