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A1620 — CUP,TAPERED ROLLER BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

A1620: 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 depth: 5.500 INCHES NOMINAL IN, width: 2.375 INCHES NOMINAL IN, height: 2.375 INCHES NOMINAL IN, material: STEEL COMP 303 OVERALL, blade_type: BACKWARD CURVE, thread_size: 1IN-20 IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0348, 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
A1620
NSN: 3110-00-100-0348
NIINs: 001000348, 002313524, 003690429, 006203802, 007375817, 010136131, 012102818, 012187221, 013203873
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 78640 — MITSUBISHI CATERPILLAR FORKLIFT AMERICA, INC (USA)
SPECIFICATIONS
depth5.500 INCHES NOMINAL IN
width2.375 INCHES NOMINAL IN
height2.375 INCHES NOMINAL IN
materialSTEEL COMP 303 OVERALL
blade_typeBACKWARD CURVE
thread_size1IN-20 IN
contact_typePIN
current_typeDC
thread_class2B
overall_width0.6250 INCHES NOMINAL IN
thread_length0.188 INCHES NOMINAL IN
blade_quantity6
NSN3110-00-100-0348
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A1620 · 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: 2.6250 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0625 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
STYLE DESIGNATORNORMAL ANGLE
OVERALL WIDTH0.6250 INCHES NOMINAL IN
OUTSIDE DIAMETER2.6250 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0625 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A1620?
A1620 is a CUP,TAPERED ROLLER BEARING.
What is the NSN for A1620?
A1620 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0348. 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.