Model: 078-20039-030

Nonwire Wound Variable Resistor

Properties:

Section Quantity
1
Body Style
Cylindrical bushing mounted
Reliability Indicator
Not established
Overall Length
Between 1.031 inches and 1.125 inches
Body Diameter
Between 0.890 inches and 0.922 inches
Shaft Diameter
0.250 inches
Shaft Length
0.625 inches
Mounting Bushing Length
0.375 inches
Body Length
Between 0.437 inches and 0.469 inches
Overall Diameter
1.274 inches
Shaft Style
Round, slotted
Actuator Type
Single shaft
Maximum Starting Torque
6.00 inch-ounces
Maximum Stop Torque
128.00 inch-ounces
Nonturn Device Location
At 9 oclock
Nonturn Device Radius
0.438 inches
Screw Thread Diameter
0.375 inches
Screw Thread Series Designator
Unef
Screw Thready Qty Per Inch (tpi)
32.0
Terminal Location
Radially positioned over less than half the circumference
Mounting Method
Locking bushing
Electrical Resistance Per Section
10.0 kilohms single section
Rotary Actuator Travel In Angular Deg
Between 251.0 and 318.0
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
120.0 single section
Power Dissipation Rating Per Section In Watts
1.0 free air single section
Resistance Tolerance Per Section In Percent
-10.0/+10.0 single section
Actuator Travel Control Feature
Stops
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
70.0 single section
Standard Taper Curve Per Section
A single section
Test Data Document
81349-mil-r-94 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Terminal Type And Quantity
3 tab, solder lug
Specification Data
81349-mil-r-94/4 government specification
NSN
5905-00-815-5498
Part Number
078-20039-030
Description
Resistor,variable,nonwire Wound,
CAGE
12131

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), if given, of the output is greater than plus or minus 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, wire wound, nonprecision; resistor (1), variable, nonwire wound precision; and resistor (1), variable, wire wound, precision.

Part 078-20039-030 NSN 5905-00-815-5498

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37405
FIIG:
A002A0
Concept No.:
1
App. Key:
B
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
B
ESD:
B
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062960
UFC:
35140
LTL:
77.5
LCL:
--
WCC:
658
TCC:
3
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8533400080
  • SITC: 77235
  • End Use: Electric apparatus
  • NAICS: 334416
  • USDA: 1

Freight Class: Variable resistors, including potentiometers, nesoi

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