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Q121972 — BEARING,BALL,AIRFRAME

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

Q121972: BEARING,BALL,AIRFRAME.

The BEARING,BALL,AIRFRAME is a the manufacturer industrial component. Key specifications include material: STEEL COMP 440C OVERALL, bore_diameter: 0.1250 INCHES NOMINAL IN, load_direction: RADIAL, inner_ring_width: 0.1406 INCHES NOMINAL IN, outer_ring_width: 0.1094 INCHES NOMINAL IN, special_features: RETAINERLESS. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-385-3510, 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
Q121972
NSN: 3110-00-385-3510
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 83086 — NEW HAMPSHIRE BALL BEARINGS INC DIV HITECH DIVISION (USA)
SPECIFICATIONS
materialSTEEL COMP 440C OVERALL
bore_diameter0.1250 INCHES NOMINAL IN
load_directionRADIAL
shield_quantity2
inner_ring_width0.1406 INCHES NOMINAL IN
outer_ring_width0.1094 INCHES NOMINAL IN
special_featuresRETAINERLESS
style_designatorSINGLE ROW INNER RING EXTENDED BOTH SIDES
overall_outside_diameter0.2800 INCHES NOMINAL IN
standard_tolerance_designationABEC NO.7
lubrication_material_document_and_classificationMIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-00-385-3510
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: Q121972 · 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
•
OUTER RING WIDTH: 0.1094 INCHES NOMINAL IN
•
SHIELD QUANTITY: 2
•
STYLE DESIGNATOR: SINGLE ROW INNER RING EXTENDED BOTH SIDES
•
OVERALL OUTSIDE DIAMETER: 0.2800 INCHES NOMINAL IN
•
LOAD DIRECTION: RADIAL
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.7
•
BORE DIAMETER: 0.1250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OUTER RING WIDTH0.1094 INCHES NOMINAL IN
SHIELD QUANTITY2
STYLE DESIGNATORSINGLE ROW INNER RING EXTENDED BOTH SIDES
OVERALL OUTSIDE DIAMETER0.2800 INCHES NOMINAL IN
LOAD DIRECTIONRADIAL
SPECIAL FEATURESRETAINERLESS
STANDARD TOLERANCE DESIGNATIONABEC NO.7
BORE DIAMETER0.1250 INCHES NOMINAL IN
MATERIALSTEEL COMP 440C OVERALL
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE
SUBSTITUTES & CROSS-REFERENCES 1
S144PPEEC26-7Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is Q121972?
Q121972 is a BEARING,BALL,AIRFRAME.
What parts can replace Q121972?
There is 1 known substitute for Q121972: S144PPEEC26-7. Substitute compatibility should be verified for your specific system.
What is the NSN for Q121972?
Q121972 is cataloged in the U.S. Government catalog under NSN 3110-00-385-3510. 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.