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245261 — RING,PISTON

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

245261: RING,PISTON.

The RING,PISTON is a the manufacturer industrial component. Key specifications include inclosure_type: ENCASED, nominal_thread_size: 0.138 INCHES IN, reference_frequency_per_function: 1.6375 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED, frequency_band_width_per_function: 1.6350 KILOHERTZ BLANK AND 1.6400 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED, mounting_facility_type_and_quantity: 2 THREADED STUD(S) LOCATION NOT OTHERWISE SPECIFIED, mounting_facility_screw_thread_series_designator: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 3110-01-359-0117, 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
245261
NSN: 3110-01-359-0117
NIINs: 013590117, 015084482
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 77237 — DANA OFF HIGHWAY PRODUCTS, LLC (USA)
SPECIFICATIONS
inclosure_typeENCASED
nominal_thread_size0.138 INCHES IN
reference_frequency_per_function1.6375 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
frequency_band_width_per_function1.6350 KILOHERTZ BLANK AND 1.6400 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
mounting_facility_type_and_quantity2 THREADED STUD(S) LOCATION NOT OTHERWISE SPECIFIED
mounting_facility_screw_thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN3110-01-359-0117
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 245261 · 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
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 245261?
245261 is a RING,PISTON.
What is the NSN for 245261?
245261 is cataloged in the U.S. Government catalog under NSN 3110-01-359-0117. 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.