PartsTable
Technical Data Sheet
28138 ✓ 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 material: STEEL OVERALL, body_shape: ROUND, body_style: CYLINDRICAL BUSHING MOUNTED, body_length: 1.688 INCHES NOMINAL IN, shaft_style: ROUND, SLOTTED, shaft_length: 1.062 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 5905-00-549-1656, 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 28138
NSN: 5905-00-549-1656
FSC: 5905
CAGE: 44655 — OHMITE HOLDING, L.L.C. DBA OHMITE MANUFACTURING (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_shapeROUND
body_styleCYLINDRICAL BUSHING MOUNTED
body_length1.688 INCHES NOMINAL IN
shaft_styleROUND, SLOTTED
shaft_length1.062 INCHES NOMINAL IN
actuator_typeSINGLE SHAFT
body_diameter1.750 INCHES NOMINAL IN
opening_width0.250 INCHES NOMINAL IN
overall_width0.438 INCHES NOMINAL IN
head_thickness0.281 INCHES NOMINAL IN
overall_length0.438 INCHES NOMINAL IN
NSN5905-00-549-1656
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,WIRE WOUND,NON TITLE COMPONENT PN 28138 MFR RESISTOR,VARIABLE,WIRE
KEY FEATURES
RELIABILITY INDICATOR: NOT ESTABLISHED
SCREW THREAD SERIES DESIGNATOR: UNEF
ACTUATOR TYPE: SINGLE SHAFT
SHAFT LENGTH: 0.969 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN
ELECTRICAL RESISTANCE PER SECTION: 100.000 OHMS SINGLE SECTION
POWER DISSIPATION RATING PER SECTION IN WATTS: 12.0 FREE AIR SINGLE SECTION
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER: 85.0 SINGLE SECTION
TERMINAL TYPE AND QUANTITY: 3 TAB, SOLDER LUG
TECHNICAL CHARACTERISTICS (FLIS)
RELIABILITY INDICATORNOT ESTABLISHED
SCREW THREAD SERIES DESIGNATORUNEF
ACTUATOR TYPESINGLE SHAFT
SHAFT LENGTH0.969 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN
ELECTRICAL RESISTANCE PER SECTION100.000 OHMS SINGLE SECTION
POWER DISSIPATION RATING PER SECTION IN WATTS12.0 FREE AIR SINGLE SECTION
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER85.0 SINGLE SECTION
TERMINAL TYPE AND QUANTITY3 TAB, SOLDER LUG
TERMINAL LOCATIONREAR END LOCATION NOT OTHERWISE SPECIFIED
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER40.0 SINGLE SECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
28138Interchangeable
interchangeable cross-reference
interchangeable
N28138Interchangeable
interchangeable cross-reference
interchangeable
21050N,PC17Interchangeable
interchangeable cross-reference
interchangeable
15142NPC21Interchangeable
interchangeable cross-reference
interchangeable
AR7500Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 28138?
28138 is a RESISTOR,VARIABLE,WIRE WOUND,NON. It is classified as a MRO (MRO_GENERAL).
What parts can replace 28138?
There are 5 known substitutes for 28138: 28138, N28138, 21050N,PC17 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 28138?
28138 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-00-549-1656. This indicates validated use in U.S. government and defense supply chains.
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