PartsTable
Technical Data Sheet
PartsTable / MRO / 2B55
2B55 ✓ 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

The TRANSFORMER,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_width: 1.000 INCHES NOMINAL IN, body_height: 1.000 INCHES NOMINAL IN, body_length: 2.812 INCHES NOMINAL IN, body_material: METAL, overall_width: 0.6875 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0293, 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→ 2B55
NSN: 3110-00-100-0293
FSC: 3110
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_width1.000 INCHES NOMINAL IN
body_height1.000 INCHES NOMINAL IN
body_length2.812 INCHES NOMINAL IN
body_materialMETAL
overall_width0.6875 INCHES NOMINAL IN
inclosure_typeENCAPSULATED OR HERMETICALLY SEALED
outside_diameter3.3464 INCHES NOMINAL IN
style_designatorRECTANGULAR TERMINAL/TERMINALS ON TWO SURFACES
nominal_thread_size0.112 INCHES IN
operating_temp_range-55.0 TO 91.0 CELSIUS DEGC
backface_corner_radius0.0469 INCHES NOMINAL IN
NSN3110-00-100-0293
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 2B55 · 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
•
BACKFACE CORNER RADIUS: 0.0469 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: NORMAL ANGLE
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
OUTSIDE DIAMETER: 3.3464 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.6875 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0469 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
OUTSIDE DIAMETER3.3464 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
66086-4Interchangeable
interchangeable cross-reference
interchangeable
354AInterchangeable
interchangeable cross-reference
interchangeable
D15-427FPC163Interchangeable
interchangeable cross-reference
interchangeable
D15-443FPC163Interchangeable
interchangeable cross-reference
interchangeable
D15-661BPC163Interchangeable
interchangeable cross-reference
interchangeable
RELEASE339Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2B55?
2B55 is a TRANSFORMER,RADIO FREQUENCY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 2B55?
There are 23 known substitutes for 2B55: 66086-4, 354A, D15-427FPC163 and 20 more. Substitute compatibility should be verified for your specific system.
Is 2B55 still available?
2B55 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026