PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R50Resistor,variable,wire Wound,non

Memcor Inc · NSN 5905-00-549-5663 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-549-5663 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-549-5663. Primary manufacturer part number: R50.
Features
  • Resistor,variable,wire Wound,non — FSC 5905
  • Body Style: CYLINDRICAL BUSHING MOUNTED
  • Electrical Resistance Per Section: 350.000 OHMS SINGLE SECTION
  • Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 340.0 SINGLE SECTION
  • Rotary Actuator Travel in Angular Deg: 295.0 MINIMUM AND 310.0 MAXIMUM
  • Ambient Temp in Deg Celsius Per Section at Full Rated Power: 25.0 SINGLE SECTION
  • Resistance Tolerance Per Section in Percent: -10.0 TO 10.0 SINGLE SECTION
  • Terminal Type and Quantity: 3 TAB, SOLDER LUG
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
  • Circuit regulation and filtering
  • Signal conditioning
General Description

The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-549-5663, is classified within Federal Supply Class 5905 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Memcor Inc. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5905-00-549-5663
Primary Part NumberR50
Item NameResistor,variable,wire Wound,non
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerMemcor Inc
StatusCANCELLED
Body StyleCYLINDRICAL BUSHING MOUNTED
Electrical Resistance Per Section350.000 OHMS SINGLE SECTION
Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power340.0 SINGLE SECTION
Rotary Actuator Travel in Angular Deg295.0 MINIMUM AND 310.0 MAXIMUM
Ambient Temp in Deg Celsius Per Section at Full Rated Power25.0 SINGLE SECTION
Resistance Tolerance Per Section in Percent-10.0 TO 10.0 SINGLE SECTION
Terminal Type and Quantity3 TAB, SOLDER LUG
Power Dissipation Rating Per Section in Watts50.0 HEAT SINK SINGLE SECTION
Test Data Document81349-MIL-R-22 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", "NOMINAL", ETC.).
Specification/standard Data81349-MIL-R-22/5 GOVERNMENT SPECIFICATION
Actuator Travel Control FeatureSTOPS
Terminal LocationRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
Reliability IndicatorNOT ESTABLISHED
Shaft Diameter0.248 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
Screw Thread Series DesignatorUNEF
Section Quantity1
Flat Height0.211 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
Shaft StyleROUND, FLATTED
Body Diameter2.410 INCHES MAXIMUM IN
Screw Thread Quantity Per Inch32.0
Maximum Starting Torque40.00 INCH-OUNCES IN
Nonturn Device Radius0.500 INCHES NOMINAL IN
Overall Diameter3.205 INCHES MAXIMUM IN
First Flat Length0.344 INCHES NOMINAL IN
Actuator TypeSINGLE SHAFT
Shaft Length0.828 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
Mounting MethodSTANDARD BUSHING
Body Length1.440 INCHES MAXIMUM IN
Maximum Stop Torque240.00 INCH-OUNCES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5950-00-266-06344300503-001 INTERCHANGEABLE
Coil,radio Frequency
Viking Technologies, Ltd.
5950-00-295-8390 INTERCHANGEABLE
Coil,radio Frequency
5950-00-387-0498 INTERCHANGEABLE
Coil,radio Frequency
3610-00-391-6148M0DEL1410 INTERCHANGEABLE
Gathering Machine,paper,motor Dr
Pitney Bowes Inc.
6675-00-982-1829 INTERCHANGEABLE
Template,drafting
5950-01-009-8541 INTERCHANGEABLE
Coil,radio Frequency
5120-01-278-1187 INTERCHANGEABLE
Socket,socket Wrench
6670-01-486-3115R50 INTERCHANGEABLE
Beam,analytical Balance
Troemner Llc
Cross-Reference Index
Part NumberManufacturer
R50 Memcor Inc (USA)
M22/05-00201FD Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-22/5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
RP151FD351KK Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILR22-5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5950-00-266-0634INTERCHANGEABLE
COIL,RADIO FREQUENCY
4300503-001
5950-00-295-8390INTERCHANGEABLE
COIL,RADIO FREQUENCY
5950-00-387-0498INTERCHANGEABLE
COIL,RADIO FREQUENCY
3610-00-391-6148INTERCHANGEABLE
GATHERING MACHINE,PAPER,MOTOR DR
M0DEL1410
6675-00-982-1829INTERCHANGEABLE
TEMPLATE,DRAFTING
5950-01-009-8541INTERCHANGEABLE
COIL,RADIO FREQUENCY
5120-01-278-1187INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6670-01-486-3115INTERCHANGEABLE
BEAM,ANALYTICAL BALANCE
R50

Frequently Asked Questions

What is NSN 5905-00-549-5663?

NSN 5905-00-549-5663 is a Resistor,variable,wire Wound,non, manufactured by Memcor Inc, classified under FSC 5905 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5905-00-549-5663?

NSN 5905-00-549-5663 has 5 cross-referenced part numbers: R50 (Memcor Inc), M22/05-00201FD (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-22/5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), RP151FD351KK (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILR22-5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5905-00-549-5663?

There are 8 known substitutes for 5905-00-549-5663: 5950-00-266-0634, 5950-00-295-8390, 5950-00-387-0498 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R50?

Key specifications for R50: Body Style: CYLINDRICAL BUSHING MOUNTED; Electrical Resistance Per Section: 350.000 OHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 340.0 SINGLE SECTION; Rotary Actuator Travel in Angular Deg: 295.0 MINIMUM AND 310.0 MAXIMUM. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5905-00-549-5663 still in active supply?

NSN 5905-00-549-5663 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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