PartsTable
Technical Data Sheet
66938-28R ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include body_style: CYLINDRICAL HOLE/SLOT MOUNTED, body_length: 2.188 INCHES NOMINAL IN, shaft_style: ROUND, shaft_length: 2.000 INCHES NOMINAL IN, actuator_type: SINGLE SHAFT, body_diameter: 6.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-01-108-5139, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO MRO_GENERAL 66938-28R
NSN: 5905-01-108-5139
FSC: 5905
CAGE: 44655 — OHMITE HOLDING, L.L.C. DBA OHMITE MANUFACTURING (USA)
SPECIFICATIONS
body_styleCYLINDRICAL HOLE/SLOT MOUNTED
body_length2.188 INCHES NOMINAL IN
shaft_styleROUND
shaft_length2.000 INCHES NOMINAL IN
actuator_typeSINGLE SHAFT
body_diameter6.000 INCHES NOMINAL IN
overall_length4.188 INCHES NOMINAL IN
shaft_diameter0.375 INCHES NOMINAL IN
mounting_methodTHREADED HOLE(S)
overall_diameter7.376 INCHES NOMINAL IN
section_quantity1
terminal_locationRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
NSN5905-01-108-5139
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,WIRE WOUND,NON TITLE COMPONENT PN 66938-28R MFR RESISTOR,VARIABLE,WIRE
KEY FEATURES
SHAFT DIAMETER: 0.375 INCHES NOMINAL IN
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER: 340.0 SINGLE SECTION
MOUNTING METHOD: THREADED HOLE(S)
ROTARY ACTUATOR TRAVEL IN ANGULAR DEG: 317.0 NOMINAL
ELECTRICAL RESISTANCE PER SECTION: 28.0 OHMS SINGLE SECTION
TEMP COEFFICIENT OF RESISTANCE WIRE PER SECTION IN PPM PER DEG CELSIUS: -20.0 TO 20.0 SINGLE SECTION
TERMINAL LOCATION: RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
RESISTANCE TOLERANCE PER SECTION IN PERCENT: -10.0 TO 10.0 SINGLE SECTION
TECHNICAL CHARACTERISTICS (FLIS)
SHAFT DIAMETER0.375 INCHES NOMINAL IN
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER340.0 SINGLE SECTION
MOUNTING METHODTHREADED HOLE(S)
ROTARY ACTUATOR TRAVEL IN ANGULAR DEG317.0 NOMINAL
ELECTRICAL RESISTANCE PER SECTION28.0 OHMS SINGLE SECTION
TEMP COEFFICIENT OF RESISTANCE WIRE PER SECTION IN PPM PER DEG CELSIUS-20.0 TO 20.0 SINGLE SECTION
TERMINAL LOCATIONRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
RESISTANCE TOLERANCE PER SECTION IN PERCENT-10.0 TO 10.0 SINGLE SECTION
ACTUATOR TRAVEL CONTROL FEATURESTOPS
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER40.0 SINGLE SECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
74850Interchangeable
interchangeable cross-reference
interchangeable
1M6573Interchangeable
interchangeable cross-reference
interchangeable
2540P11Interchangeable
interchangeable cross-reference
interchangeable
162210Interchangeable
interchangeable cross-reference
interchangeable
P39761Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 66938-28R?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 66938-28R?
66938-28R is a RESISTOR,VARIABLE,WIRE WOUND,NON. It is classified as a MRO (MRO_GENERAL).
What parts can replace 66938-28R?
There are 5 known substitutes for 66938-28R: 74850, 1M6573, 2540P11 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 66938-28R?
66938-28R is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-01-108-5139. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 66938-28R