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NA580-SW.CUP 57 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

NA580-SW.CUP 57: 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: 1.8125 INCHES NOMINAL IN, bore_diameter: 3.2500 INCHES NOMINAL IN, overall_width: 3.6250 INCHES NOMINAL IN, standout_width: 0.5000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-862-6984, 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
NA580-SW.CUP 57
NSN: 3110-00-862-6984
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width2.6250 INCHES NOMINAL IN
cone_width1.8125 INCHES NOMINAL IN
bore_diameter3.2500 INCHES NOMINAL IN
overall_width3.6250 INCHES NOMINAL IN
standout_width0.5000 INCHES NOMINAL IN
special_featuresOIL HOLE AND OIL GROOVE IN CUP SLOTTED CONES; EXTENDED CONE RIB CROUND FOR SEALING PURPOSES
style_designatorSTRAIGHT BORE, DOUBLE CUP SLOTTED SINGLE CONES, NON-ADJUSTABLE
cone_corner_radius0.1400 INCHES NOMINAL IN
backface_corner_radius0.0310 INCHES NOMINAL IN
overall_outside_diameter5.5115 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
NSN3110-00-862-6984
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: NA580-SW.CUP 57 · 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
•
CUP WIDTH: 2.6250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT BORE, DOUBLE CUP SLOTTED SINGLE CONES, NON-ADJUSTABLE
•
OVERALL OUTSIDE DIAMETER: 5.5115 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0310 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.1400 INCHES NOMINAL IN
•
STANDOUT WIDTH: 0.5000 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
CUP WIDTH2.6250 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, DOUBLE CUP SLOTTED SINGLE CONES, NON-ADJUSTABLE
OVERALL WIDTH3.6250 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER5.5115 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0310 INCHES NOMINAL IN
CONE CORNER RADIUS0.1400 INCHES NOMINAL IN
STANDOUT WIDTH0.5000 INCHES NOMINAL IN
CONE WIDTH1.8125 INCHES NOMINAL IN
SPECIAL FEATURESOIL HOLE AND OIL GROOVE IN CUP SLOTTED CONES; EXTENDED CONE RIB CROUND FOR SEALING PURPOSES
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 7
7D3-05335 IT N0Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
TNASWE TWO-ROWReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
Z200661M009Reference document
Same NSN cross-reference
Reference document — Secondary reference
7D3-05046 IT NOReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
D200661M001 PIECE 8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
NA580SWReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NA580-SW.CUP 57?
NA580-SW.CUP 57 is a BEARING,ROLLER,TAPERED.
What parts can replace NA580-SW.CUP 57?
There are 7 known substitutes for NA580-SW.CUP 57: 7D3-05335 IT N0, TNASWE TWO-ROW, Z200661M009 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NA580-SW.CUP 57?
NA580-SW.CUP 57 is cataloged in the U.S. Government catalog under NSN 3110-00-862-6984. 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.