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312SG — CUP,TAPERED ROLLER BEARING

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

312SG: 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 end_item_identification: CONTROL PANEL, part_name_assigned_by_controlling_agency: DISPLAY MODULE. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-155-6296, 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→ 312SG
NSN: 3110-00-155-6296
NIINs: 001556296, 016229409, 017064472
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 63734 — KAITLIN CORP (USA)
SPECIFICATIONS
end_item_identificationCONTROL PANEL
part_name_assigned_by_controlling_agencyDISPLAY MODULE
NSN3110-00-155-6296
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 312SG · 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
•
RETAINER FABRICATION METHOD: PRESSED
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 130.0 MILLIMETERS NOMINAL MM
•
FEATURES PROVIDED: SNAP RING-GROOVE MOUNTING AND MOUNTING GROOVE
•
BORE SHAPE: STRAIGHT
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
RETAINER FABRICATION METHODPRESSED
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH31.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER130.0 MILLIMETERS NOMINAL MM
FEATURES PROVIDEDSNAP RING-GROOVE MOUNTING AND MOUNTING GROOVE
BORE SHAPESTRAIGHT
NONDEFINITIVE SPEC/STD DATA111 TYPE AND 4 CLASS AND 00 GRADE
LOAD DIRECTIONRADIAL
SUBSTITUTES & CROSS-REFERENCES 7
81502Reference document
Same NSN cross-reference
Reference document — Secondary reference
NDC00018Reference document
Same NSN cross-reference
Reference document — Secondary reference
86FT78Reference document
Same NSN cross-reference
Reference document — Secondary reference
553733Reference document
Same NSN cross-reference
Reference document — Secondary reference
954276Reference document
Same NSN cross-reference
Reference document — Secondary reference
2122905Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 312SG?
312SG is a CUP,TAPERED ROLLER BEARING. It is classified as a MRO (MRO_GENERAL).
What parts can replace 312SG?
There are 7 known substitutes for 312SG: 81502, NDC00018, 86FT78 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 312SG?
312SG is cataloged in the U.S. Government catalog under NSN 3110-00-155-6296. 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.