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063012 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

063012: BEARING,ROLLER,TAPERED.

The BEARING,ROLLER,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL COMP 1020 OUTER LAYER, cup_width: 2.2500 INCHES NOMINAL IN, cone_width: 2.9375 INCHES NOMINAL IN, corner_shape: SQUARE ALL CORNERS, bore_diameter: 5.7500 INCHES NOMINAL IN, overall_width: 2.9375 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-5540, 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
MRO→ MRO_GENERAL→ 063012
NSN: 3110-00-100-5540
NIINs: 001005540, 007696355, 011821090, 014245975, 014599258
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 55380 — HATCH & KIRK, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OUTER LAYER
cup_width2.2500 INCHES NOMINAL IN
cone_width2.9375 INCHES NOMINAL IN
corner_shapeSQUARE ALL CORNERS
bore_diameter5.7500 INCHES NOMINAL IN
overall_width2.9375 INCHES NOMINAL IN
overall_length1.0940 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN
standout_width0.6875 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
cone_corner_radius0.2500 INCHES NOMINAL IN
body_inside_diameter0.8720 INCHES MINIMUM AND 0.8730 INCHES MAXIMUM IN
body_outside_diameter1.0010 INCHES MINIMUM AND 1.0020 INCHES MAXIMUM IN
NSN3110-00-100-5540
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 063012 · 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
•
CUP WIDTH: 2.2500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT BORE, NORMAL ANGLE
•
OVERALL OUTSIDE DIAMETER: 10.5625 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.2500 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 751 TYPE
•
CONE CORNER RADIUS: 0.2500 INCHES NOMINAL IN
•
STANDOUT WIDTH: 0.6875 INCHES NOMINAL IN
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
CUP WIDTH2.2500 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
OVERALL WIDTH2.9375 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER10.5625 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.2500 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA751 TYPE
CONE CORNER RADIUS0.2500 INCHES NOMINAL IN
STANDOUT WIDTH0.6875 INCHES NOMINAL IN
CONE WIDTH2.9375 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 4
SUBSTITUTES & CROSS-REFERENCES 1
FFB187TYPE751Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 063012?
063012 is a BEARING,ROLLER,TAPERED. It is classified as a MRO (MRO_GENERAL).
What parts can replace 063012?
There is 1 known substitute for 063012: FFB187TYPE751. Substitute compatibility should be verified for your specific system.
What is the NSN for 063012?
063012 is cataloged in the U.S. Government catalog under NSN 3110-00-100-5540. 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.