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643906 — IBM 16/32GB 14 TAPE DRIVE ASSM

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

643906: IBM 16/32GB 14 TAPE DRIVE ASSM.

The IBM 16/32GB 14 TAPE DRIVE ASSM is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.4990 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN, body_outside_diameter: 0.6270 INCHES MINIMUM AND 0.6280 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0207, 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
643906
NSN: 3110-00-100-0207
NIINs: 001000207, 003537278
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 12603 — CLARK EQUIPMENT CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.4990 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN
body_outside_diameter0.6270 INCHES MINIMUM AND 0.6280 INCHES MAXIMUM IN
material_document_and_classificationQQ-P-691,TYPE 1,COMP 8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3110-00-100-0207
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 643906 · 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
•
32GB Capacity
•
STYLE DESIGNATOR: NORMAL ANGLE
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
CONE WIDTH: 0.8820 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 1.6250 INCHES NOMINAL IN
•
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
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
CONE WIDTH0.8820 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER1.6250 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 6
0210548-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
JT9009Reference document
Same NSN cross-reference
Reference document — Secondary reference
210548Reference document
Same NSN cross-reference
Reference document — Secondary reference
12914Reference document
Same NSN cross-reference
Reference document — Secondary reference
705021Reference document
Same NSN cross-reference
Reference document — Secondary reference
342Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 643906?
643906 is a IBM 16/32GB 14 TAPE DRIVE ASSM.
What parts can replace 643906?
There are 6 known substitutes for 643906: 0210548-4, JT9009, 210548 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 643906?
643906 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0207. 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.