PartsTable
Technical Data Sheet
A-749 ✓ Verified by PartsTable
· TAPERED BEARING
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 INTERCOMMUNICATION STATION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_height: 0.290 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN, body_diameter: 0.650 INCHES MINIMUM AND 0.670 INCHES MAXIMUM IN, terminal_type: TAB, SOLDER LUG, alignment_type: RIGID, overall_height: 0.655 INCHES MAXIMUM 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 3110-00-151-8331, 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
A-749
NSN: 3110-00-151-8331
FSC: 3110
CAGE: 00658 — ABC ACQUISITION COMPANY DBA AETNA BEARING COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_height0.290 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
body_diameter0.650 INCHES MINIMUM AND 0.670 INCHES MAXIMUM IN
terminal_typeTAB, SOLDER LUG
alignment_typeRIGID
overall_height0.655 INCHES MAXIMUM IN
overall_length1.375 INCHES NOMINAL IN
surface_finishGROUND
mounting_methodBRACKET(S) AND UNTHREADED HOLE(S)
special_featuresBANDED OD
style_designatorDISC W/FLANGE
features_providedHERMETICALLY SEALED CASE
NSN3110-00-151-8331
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A-749 · 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
SURFACE FINISH: GROUND
THRUST DIRECTIONAL CAPABILITY DESIGNATION: SINGLE
ALIGNMENT TYPE: RIGID
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHGROUND
SPECIAL FEATURESBANDED OD
THRUST DIRECTIONAL CAPABILITY DESIGNATIONSINGLE
ALIGNMENT TYPERIGID
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
1088855Interchangeable
interchangeable cross-reference
interchangeable
A-813Interchangeable
interchangeable cross-reference
interchangeable
A-749Interchangeable
interchangeable cross-reference
interchangeable
3100-66-1Interchangeable
interchangeable cross-reference
interchangeable
SM-B-526616Interchangeable
interchangeable cross-reference
interchangeable
C2104A1C18Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-749?
A-749 is a INTERCOMMUNICATION STATION.
What parts can replace A-749?
There are 11 known substitutes for A-749: 1088855, A-813, A-749 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-749?
A-749 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-151-8331. This indicates validated use in U.S. government and defense supply chains.
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