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102790-1 — BEARING,ROLLER,NEEDLE

✓ Government record, cited
3M · TAPERED BEARING
PRODUCT OVERVIEW

102790-1: BEARING,ROLLER,NEEDLE.

The BEARING,ROLLER,NEEDLE is a 3M industrial component. Key specifications include material: STEEL INNER RACE, bore_diameter: 0.5800 INCHES NOMINAL IN, alignment_type: SELF-ALIGNING, surface_finish: UNGROUND, inner_ring_width: 1.0000 INCHES NOMINAL IN, outer_ring_width: 0.7450 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-446-2620, 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
102790-1
NSN: 3110-01-446-2620
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 54786 — BAE SYSTEMS LAND & ARMAMENTS L.P. (USA)
SPECIFICATIONS
materialSTEEL INNER RACE
bore_diameter0.5800 INCHES NOMINAL IN
alignment_typeSELF-ALIGNING
surface_finishUNGROUND
inner_ring_width1.0000 INCHES NOMINAL IN
outer_ring_width0.7450 INCHES NOMINAL IN
style_designatorTRACK ROLLER
self-alignment_locationINTERNAL
overall_outside_diameter0.9000 INCHES NOMINAL IN
retainer_fabrication_methodMACHINED
NSN3110-01-446-2620
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 102790-1 · 3M ⚠ 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: MACHINED
•
OUTER RING WIDTH: 0.7450 INCHES NOMINAL IN
•
SURFACE FINISH: UNGROUND
•
STYLE DESIGNATOR: TRACK ROLLER
•
OVERALL OUTSIDE DIAMETER: 0.9000 INCHES NOMINAL IN
•
ALIGNMENT TYPE: SELF-ALIGNING
•
BORE DIAMETER: 0.5800 INCHES NOMINAL IN
•
MATERIAL: STEEL INNER RACE
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
OUTER RING WIDTH0.7450 INCHES NOMINAL IN
SURFACE FINISHUNGROUND
STYLE DESIGNATORTRACK ROLLER
OVERALL OUTSIDE DIAMETER0.9000 INCHES NOMINAL IN
ALIGNMENT TYPESELF-ALIGNING
BORE DIAMETER0.5800 INCHES NOMINAL IN
MATERIALSTEEL INNER RACE
MATERIALSTEEL OUTER RACE
MATERIALPLASTIC SHELL
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

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 102790-1?
102790-1 is a BEARING,ROLLER,NEEDLE manufactured by 3M.
What is the NSN for 102790-1?
102790-1 is cataloged in the U.S. Government catalog under NSN 3110-01-446-2620. 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.