PartsTable
Technical Data Sheet
1550-139 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

CAPACITOR,FIXED,MICA DIELECTRIC. Key specifications include material: PLASTIC CASE, body_style: W/MTG TABS/FLANGES, TERMINAL(S) ON ONE SURFACE, body_width: 1.265 INCHES NOMINAL IN, body_height: 1.843 INCHES NOMINAL IN, body_length: 2.312 INCHES NOMINAL IN, bore_diameter: 0.5000 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-7721, 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 1550-139
NSN: 3110-00-156-7721
FSC: 3110
CAGE: 00988 — SIOUX TOOLS INC (USA)
SPECIFICATIONS
materialPLASTIC CASE
body_styleW/MTG TABS/FLANGES, TERMINAL(S) ON ONE SURFACE
body_width1.265 INCHES NOMINAL IN
body_height1.843 INCHES NOMINAL IN
body_length2.312 INCHES NOMINAL IN
bore_diameter0.5000 INCHES NOMINAL IN
overall_width0.5000 INCHES NOMINAL IN
alignment_typeRIGID
surface_finishGROUND
special_featuresOIL HOLE IN OUTER RACE,EXTRA-CAPACITY OUTER RACE
style_designatorNON-SEPARABLE, OPEN END, DRAWN SHELL
reliability_indicatorNOT ESTABLISHED
NSN3110-00-156-7721
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1550-139 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
ALIGNMENT TYPE: RIGID
RETAINER FABRICATION METHOD: PRESSED
SURFACE FINISH: GROUND
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)
SPECIAL FEATURESOIL HOLE IN OUTER RACE,EXTRA-CAPACITY OUTER RACE
END ITEM IDENTIFICATIONLOGISTICS SUPPORT VESSEL (LSV)
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
ALIGNMENT TYPERIGID
RETAINER FABRICATION METHODPRESSED
SURFACE FINISHGROUND
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
ALIGNMENT TYPERIGID
BORE DIAMETER0.5000 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER0.6875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
B88Interchangeable
interchangeable cross-reference
interchangeable
35205Interchangeable
interchangeable cross-reference
interchangeable
ULPK0017Interchangeable
interchangeable cross-reference
interchangeable
8130869Interchangeable
interchangeable cross-reference
interchangeable
MS17131Interchangeable
interchangeable cross-reference
interchangeable
A28229Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1550-139?
1550-139 is a CAPACITOR,FIXED,MICA DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1550-139?
There are 28 known substitutes for 1550-139: B88, 35205, ULPK0017 and 25 more. Substitute compatibility should be verified for your specific system.
Is 1550-139 still available?
1550-139 is currently cancelled.
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