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SB2403 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
ACT · TAPERED BEARING
PRODUCT OVERVIEW

SB2403: BEARING,ROLLER,CYLINDRICAL.

High Speed Certified USB 2.0 cable . Key specifications include material: COPPER ALLOY BODY, bonnet_type: INSIDE SCREW, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: ANGLE, thread_direction: RIGHT-HAND ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-275-0169, 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
SB2403
NSN: 3110-00-275-0169
NIINs: 002750169, 012568957
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
bonnet_typeINSIDE SCREW
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorANGLE
thread_directionRIGHT-HAND ALL ENDS
nominal_thread_size0.250 INCHES ALL ENDS IN
valve_operation_methodMANUAL
bonnet_attachment_methodUNION
thread_series_designatorNPT ALL ENDS
NSN3110-00-275-0169
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: SB2403 · ACT ⚠ 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
•
RETAINER FABRICATION METHOD: MACHINED
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
LOCATING FEATURE: NONLOCATING
•
SURFACE FINISH: GROUND
•
BORE SHAPE: STRAIGHT
•
MATERIAL: STEEL INNER RING
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
INTERNAL FIT-UP DESIGNATIONSTANDARD
LOCATING FEATURENONLOCATING
SURFACE FINISHGROUND
BORE SHAPESTRAIGHT
SPECIAL FEATURESOIL HOLE AND GROOVE IN INNER RING
MATERIALSTEEL INNER RING
MATERIALSTEEL RETAINER
MATERIALSTEEL ROLLER
SUBSTITUTES & CROSS-REFERENCES 3
MS31997Reference document
Same NSN cross-reference
Reference document — Secondary reference
SB2403-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MS-5222-903Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SB2403?
SB2403 is a BEARING,ROLLER,CYLINDRICAL manufactured by ACT.
What parts can replace SB2403?
There are 3 known substitutes for SB2403: MS31997, SB2403-1, MS-5222-903. Substitute compatibility should be verified for your specific system.
What is the NSN for SB2403?
SB2403 is cataloged in the U.S. Government catalog under NSN 3110-00-275-0169. 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.