PartsTable
Technical Data Sheet
PartsTable / MRO / M5B
M5B ✓ 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

CAPACITOR,VARIABLE,CERAMIC DIELE. Key specifications include body_style: PISTON, body_length: 0.168 INCHES NOMINAL IN, current_type: AC, overall_depth: 17.000 INCHES NOMINAL IN, inclosure_type: ENCASED, overall_height: 21.000 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 6520-00-139-1246, 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→ M5B
NSN: 6520-00-139-1246
FSC: 6520
CAGE: 53542 — AIR TECHNIQUES, INC. (USA)
SPECIFICATIONS
body_stylePISTON
body_length0.168 INCHES NOMINAL IN
current_typeAC
overall_depth17.000 INCHES NOMINAL IN
inclosure_typeENCASED
overall_height21.000 INCHES NOMINAL IN
overall_length0.329 INCHES MAXIMUM IN
terminal_length0.100 INCHES NOMINAL IN
overall_diameter0.140 INCHES NOMINAL IN
terminal_thickness0.008 INCHES NOMINAL IN
adjustment_device_torque0.200 INCH-OUNCES MINIMUM AND 2.000 INCH-OUNCES MAXIMUM IN
nonderated_operating_temp-55.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
NSN6520-00-139-1246
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,CERAMIC DIELE TITLE COMPONENT PN M5B MFR CAPACITOR,VARIABLE,CER
KEY FEATURES
•
MAXIMUM COMPRESSOR CAPACITY RATING: 5.6 CUBIC FEET PER MINUTE
•
MAXIMUM DEHYDRATOR PRESSURE RATING: 80.0 POUNDS PER SQUARE INCH LBS
•
CURRENT TYPE: AC
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYCOMPRESSOR - DEHYDRATOR DENTAL EQUIPMENT:
MAXIMUM COMPRESSOR CAPACITY RATING5.6 CUBIC FEET PER MINUTE
OVERALL DEPTH17.000 INCHES NOMINAL IN
MAXIMUM DEHYDRATOR PRESSURE RATING80.0 POUNDS PER SQUARE INCH LBS
OVERALL LENGTH24.000 INCHES NOMINAL IN
OVERALL HEIGHT21.000 INCHES NOMINAL IN
CURRENT TYPEAC
SPECIAL FEATURESFIELD; PORTABLE; OIL-LESS; DOES NOT REQUIRE FILTER; FIELD REPLACEABLE DRYING CHAMBER; CONSISTS OF ELECTRICAL MOTOR DIRECTLY COUPLED TO AN AIR COMPRESSOR EQUIPPED W/STORAGE TANK AND AIR DRYER; IN REINFORCED REUSABLE CARRYING CASE; FEATURES FINNED CYLINDERS AND CYLINDER HEADS FOR MAX HEAT DISSIPATION,DYNAMATICALLY BALANCED ROTATING COMPONENTS,A VENTILATED CRANK CASE W/COOLING FAN,PERMANENTLY LUBRICATED BALL BEARINGS,AND CAST END BELLS AND STATOR HOUSING TO MINIMIZE NOISE; INCLUDES ONE 10 FT LONG THREE CONDUCTOR POWER CORD AND TWO 10-FT LONG HIGH PRESSURE AIR DELIVERY HOSES W/QUICK DISCONNECTS; FOR USE W/DENTAL OPERATING AND TREATMENT UNIT,FIELD,6520-00-140-7663 FT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
M5AInterchangeable
interchangeable cross-reference
interchangeable
2045Interchangeable
interchangeable cross-reference
interchangeable
2901-110411Interchangeable
interchangeable cross-reference
interchangeable
PC21J4R5Interchangeable
interchangeable cross-reference
interchangeable
7271Interchangeable
interchangeable cross-reference
interchangeable
P58Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M5B?
M5B is a CAPACITOR,VARIABLE,CERAMIC DIELE. It is classified as a MRO (MRO_GENERAL).
What parts can replace M5B?
There are 10 known substitutes for M5B: M5A, 2045, 2901-110411 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M5B?
M5B is cataloged in the Federal Logistics Information System (FLIS) under NSN 6520-00-139-1246. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026