PartsTable
Technical Data Sheet

313K/MM313K A4045 — BALL,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

313K/MM313K A4045: BALL,BEARING.

The BALL,BEARING is a the manufacturer industrial component. Key specifications include special_features: SUPER QUIET RUNNING BEARING; OUTSIDE DIAMETER - 5.5118 INCHES; LENGTH 1.2992 INCHES; WEIGHT - 4.51 LBS. LBS, end_item_identification: MOTOR, A.C.

50 HP. This part is cataloged in the U.S. Government catalog under NSN 3110-01-548-7792, 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
313K/MM313K A4045
NSN: 3110-01-548-7792
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 17402 — FAFNIR BEARING CO INC
SPECIFICATIONS
special_featuresSUPER QUIET RUNNING BEARING; OUTSIDE DIAMETER - 5.5118 INCHES; LENGTH 1.2992 INCHES; WEIGHT - 4.51 LBS. LBS
end_item_identificationMOTOR, A.C. 50 HP
NSN3110-01-548-7792
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 313K/MM313K A4045 · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESSUPER QUIET RUNNING BEARING; OUTSIDE DIAMETER - 5.5118 INCHES; LENGTH 1.2992 INCHES; WEIGHT - 4.51 LBS. LBS
END ITEM IDENTIFICATIONMOTOR, A.C. 50 HP
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 1
A/365TNC/56 PC-28Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 313K/MM313K A4045?
313K/MM313K A4045 is a BALL,BEARING.
What parts can replace 313K/MM313K A4045?
There is 1 known substitute for 313K/MM313K A4045: A/365TNC/56 PC-28. Substitute compatibility should be verified for your specific system.
What is the NSN for 313K/MM313K A4045?
313K/MM313K A4045 is cataloged in the U.S. Government catalog under NSN 3110-01-548-7792. 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.