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Precision Wire Wound Variable Resistor

NSN: 5905-00-004-1976 | Model: 3550S51-502

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, etc., 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.

NSN Properties and Flags
NATO Stock Number
5905-00-004-1976
DEMIL
NO
Section Quantity
1
Body Style
Cylindrical servo mounted
Reliability Indicator
Not established
Pilot Diameter
0.62500 inches
Pilot Length
0.06200 inches
Overall Length
1.986 inches
Undercut Diameter
0.781 inches
Undercut Width
0.06200 inches
Body Diameter
0.875 inches
Shaft Diameter
0.1248 inches
Shaft Length
0.375 inches
Body Length
1.580 inches
Overall Diameter
1.070 inches
Mounting Lip Diameter
0.87500 inches
Mounting Lip Depth
0.06200 inches
Shaft Style
Round
Shaft Bearing Type
Ball
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
3600.0
Maximum Starting Torque
0.40 inch-ounces
Maximum Running Torque
0.30 inch-ounces
Shaft End Play
0.00300 inches
Shaft Runout
0.001 inches
Lateral Runout
0.003 inches
Pilot Diameter Runout
0.00150 inches
Shaft Radial Play
0.002 inches
Terminal Location
Radially positioned over less than half the circumference
Mounting Method
Clamp ring
Electrical Resistance Per Section
5.000 kilohms single section
Tap Location From Ccw Terminal Per Section In Deg Of Effective Electrical Rotation
1800.0 single section
Rotary Actuator Travel In Angular Deg
3600.0
Function Conformity Tolerance Per Section
-0.20/+0.20 single section
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
125.0 single section
Power Dissipation Rating Per Section In Watts
2.5 free air single section
Function Conformity Per Section
Single section independent linearity
Fixed Tap Quantity Per Section
1 single section
Tap Location Tolerance Per Section
-2.0/+2.0 degrees angular rotation single section
Resistance Tolerance Per Section In Percent
-3.0 to 3.0 single section
Actuator Travel Control Feature
Stops
Function Characteristic Per Section
Single section linear
Tempurature Coefficient Of Resistance Wire Per Section In Ppm Per Deg Celsius
-20.0/+20.0 single section
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
70.0 single section
Terminal Type And Quantity
4 turret

Pricing and Availability

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NSN 5905-00-004-1976 Datasheet

Supply Class (FSC):
Resistors
Cross Reference:
  • 3550S51-502
Cage Codes:
  • Bourns Instruments Inc (CAGE 80294)
Schedule B & Trade:
  • Schedule B: 8533390080 (NAICS 334416)

    Wirewound variable resistors, nesoi

  • SITC: 77233

    Wirewound electrical variable resistors (including rheostats and potentiometers)

  • End Use: 20005

    Electric apparatus

Identification:
HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

U - Precious metal content is unknown

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    062960 - Reostats/parts noi

  • WCC:

    658 - Electrical appliances, small

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    H - Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps)

  • LTL:

    P - 77.5

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    V
  • Quantity per pack
    No qup
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    9b-----
  • Repariability

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $175.77 to $292.95..
Does NSN 5905-00-004-1976 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Defense Logistics Agency
What is the NIIN of NSN 5905-00-004-1976?
000041976 or 00-004-1976
Does NSN 5905-00-004-1976 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5905-00-004-1976?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
May 27, 1972