PartsTable
Technical Data Sheet
Download PDF

1328B — CUP,TAPERED ROLLER BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

1328B: CUP,TAPERED ROLLER BEARING.

The CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: RUBBER BUTADIENE-STYRENE CLASS SBR, hole_diameter: 0.156 INCHES NOMINAL IN, overall_height: 0.438 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN, style_designator: DONUT TOP COUNTERBORED, first_counterbore_depth: 0.250 INCHES NOMINAL IN, material_hardness_rating: 60.0 DUROMETER MINIMUM AND 70.0 DUROMETER MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-234-1468, 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
1328B
NSN: 3110-01-234-1468
NIINs: 012341468, 014859547
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-STYRENE CLASS SBR
hole_diameter0.156 INCHES NOMINAL IN
overall_height0.438 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
style_designatorDONUT TOP COUNTERBORED
first_counterbore_depth0.250 INCHES NOMINAL IN
material_hardness_rating60.0 DUROMETER MINIMUM AND 70.0 DUROMETER MAXIMUM
first_counterbore_diameter0.312 INCHES NOMINAL IN
outside/top_flange_diameter0.563 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
NSN3110-01-234-1468
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1328B · 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
•
FLANGE OUTSIDE DIAMETER: 2.2147 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE, FLANGED
•
FLANGE WIDTH: 0.1560 INCHES NOMINAL IN
•
OUTER RING OUTSIDE DIAMETER: 2.0625 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS
FLANGE OUTSIDE DIAMETER2.2147 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE, FLANGED
OVERALL WIDTH0.5625 INCHES NOMINAL IN
FLANGE WIDTH0.1560 INCHES NOMINAL IN
OUTER RING OUTSIDE DIAMETER2.0625 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
501-4457023 ITEM 102Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6503-86 ITEM 102Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 1328B?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 1328B?
1328B is a CUP,TAPERED ROLLER BEARING.
What parts can replace 1328B?
There are 2 known substitutes for 1328B: 501-4457023 ITEM 102, 6503-86 ITEM 102. Substitute compatibility should be verified for your specific system.
What is the NSN for 1328B?
1328B is cataloged in the U.S. Government catalog under NSN 3110-01-234-1468. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 1328B

✓ 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.