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BN25728 — RETAINER AND ROLLERS,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

BN25728: RETAINER AND ROLLERS,BEARING.

The RETAINER AND ROLLERS,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_diameter: 1.3880 INCHES NOMINAL IN, overall_width: 0.7070 INCHES MINIMUM AND 0.7220 INCHES MAXIMUM IN, outside_diameter: 1.7015 INCHES NOMINAL IN, style_designator: RETAINER AND NEEDLE ROLLERS, retainer_fabrication_method: PRESSED. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-945-8401, 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
BN25728
NSN: 3110-00-945-8401
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60380 — TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter1.3880 INCHES NOMINAL IN
overall_width0.7070 INCHES MINIMUM AND 0.7220 INCHES MAXIMUM IN
outside_diameter1.7015 INCHES NOMINAL IN
style_designatorRETAINER AND NEEDLE ROLLERS
retainer_piece_quantity1
retainer_fabrication_methodPRESSED
NSN3110-00-945-8401
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: BN25728 · 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
•
STYLE DESIGNATOR: RETAINER AND NEEDLE ROLLERS
•
OUTSIDE DIAMETER: 1.7015 INCHES NOMINAL IN
•
BORE DIAMETER: 1.3880 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
RETAINER PIECE QUANTITY: 1
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODPRESSED
STYLE DESIGNATORRETAINER AND NEEDLE ROLLERS
OVERALL WIDTH0.7070 INCHES MINIMUM AND 0.7220 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.7015 INCHES NOMINAL IN
BORE DIAMETER1.3880 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
RETAINER PIECE QUANTITY1
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BN25728?
BN25728 is a RETAINER AND ROLLERS,BEARING.
What is the NSN for BN25728?
BN25728 is cataloged in the U.S. Government catalog under NSN 3110-00-945-8401. 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.