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HM252349HM252310 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

HM252349HM252310: 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 OVERALL, cup_width: 2.6250 INCHES NOMINAL IN, cone_width: 3.1406 INCHES NOMINAL IN, bore_diameter: 10.2500 INCHES NOMINAL IN, overall_width: 3.1406 INCHES NOMINAL IN, standout_width: 0.7656 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-480-9276, 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
HM252349HM252310
NSN: 3110-00-480-9276
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width2.6250 INCHES NOMINAL IN
cone_width3.1406 INCHES NOMINAL IN
bore_diameter10.2500 INCHES NOMINAL IN
overall_width3.1406 INCHES NOMINAL IN
standout_width0.7656 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, DOUBLE CUP, SINGLE CONES
cone_corner_radius0.2700 INCHES NOMINAL IN
lubrication_materialLUBRICANT
backface_corner_radius0.1130 INCHES NOMINAL IN
overall_outside_diameter16.6250 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
NSN3110-00-480-9276
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: HM252349HM252310 · 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
•
LUBRICATION MATERIAL: LUBRICANT
•
CUP WIDTH: 2.6250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT BORE, DOUBLE CUP, SINGLE CONES
•
OVERALL OUTSIDE DIAMETER: 16.6250 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.1130 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.2700 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
RETAINER FABRICATION METHODPRESSED
LUBRICATION MATERIALLUBRICANT
CUP WIDTH2.6250 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, DOUBLE CUP, SINGLE CONES
OVERALL WIDTH3.1406 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER16.6250 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1130 INCHES NOMINAL IN
CONE CORNER RADIUS0.2700 INCHES NOMINAL IN
STANDOUT WIDTH0.7656 INCHES NOMINAL IN
CONE WIDTH3.1406 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 1
D300992PC44Reference document
Same NSN cross-reference
Reference document — Secondary 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 HM252349HM252310?
HM252349HM252310 is a BEARING,ROLLER,TAPERED.
What parts can replace HM252349HM252310?
There is 1 known substitute for HM252349HM252310: D300992PC44. Substitute compatibility should be verified for your specific system.
What is the NSN for HM252349HM252310?
HM252349HM252310 is cataloged in the U.S. Government catalog under NSN 3110-00-480-9276. 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.