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2B55 — TRANSFORMER,RADIO FREQUENCY

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

2B55: TRANSFORMER,RADIO FREQUENCY.

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 U.S.

Government catalog 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
NIINs: 001000293, 010690328
FSC: 3110 — Bearings, Antifriction, Unmounted
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
•
STYLE DESIGNATOR: NORMAL ANGLE
•
OUTSIDE DIAMETER: 3.3464 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0469 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORNORMAL ANGLE
OVERALL WIDTH0.6875 INCHES NOMINAL IN
OUTSIDE DIAMETER3.3464 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0469 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 8
0211608-5Reference document
Same NSN cross-reference
Reference document — Secondary reference
K354ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
25545HReference document
Same NSN cross-reference
Reference document — Secondary reference
PX734Reference document
Same NSN cross-reference
Reference document — Secondary reference
3T5183Reference document
Same NSN cross-reference
Reference document — Secondary reference
799136Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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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 8 known substitutes for 2B55: 0211608-5, K354A, 25545H and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2B55?
2B55 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0293. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.