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NTA2840 — RETAINER AND ROLLERS,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

NTA2840: RETAINER AND ROLLERS,BEARING.

The RETAINER AND ROLLERS,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 5140 ROLLER, bore_diameter: 1.7520 INCHES NOMINAL IN, outside_diameter: 2.4900 INCHES NOMINAL IN, style_designator: RETAINER AND ROLLERS, THRUST, rolling_element_diameter: 0.0781 INCHES NOMINAL IN, retainer_fabrication_method: PRESSED. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-756-2022, 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
NTA2840
NSN: 3110-00-756-2022
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60380 — TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT (USA)
SPECIFICATIONS
materialSTEEL COMP 5140 ROLLER
bore_diameter1.7520 INCHES NOMINAL IN
outside_diameter2.4900 INCHES NOMINAL IN
style_designatorRETAINER AND ROLLERS, THRUST
retainer_piece_quantity2
rolling_element_diameter0.0781 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
NSN3110-00-756-2022
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: NTA2840 · 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
•
ROLLING ELEMENT DIAMETER: 0.0781 INCHES NOMINAL IN
•
STYLE DESIGNATOR: RETAINER AND ROLLERS, THRUST
•
OUTSIDE DIAMETER: 2.4900 INCHES NOMINAL IN
•
BORE DIAMETER: 1.7520 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 5140 ROLLER
•
RETAINER PIECE QUANTITY: 2
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODPRESSED
ROLLING ELEMENT DIAMETER0.0781 INCHES NOMINAL IN
STYLE DESIGNATORRETAINER AND ROLLERS, THRUST
OUTSIDE DIAMETER2.4900 INCHES NOMINAL IN
BORE DIAMETER1.7520 INCHES NOMINAL IN
MATERIALSTEEL COMP 5140 ROLLER
MATERIALSTEEL RETAINER
RETAINER PIECE QUANTITY2
SUBSTITUTES & CROSS-REFERENCES 8
23721Reference document
Same NSN cross-reference
Reference document — Secondary reference
K686747-11Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
NF203533-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
232001R91Reference document
Same NSN cross-reference
Reference document — Secondary reference
TC2840Reference document
Same NSN cross-reference
Reference document — Secondary reference
K686414-11Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NTA2840?
NTA2840 is a RETAINER AND ROLLERS,BEARING.
What parts can replace NTA2840?
There are 8 known substitutes for NTA2840: 23721, K686747-11, NF203533-1 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NTA2840?
NTA2840 is cataloged in the U.S. Government catalog under NSN 3110-00-756-2022. 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.