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177030-85 — BEARING,BALL,AIRFRAME

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

177030-85: BEARING,BALL,AIRFRAME.

The BEARING,BALL,AIRFRAME is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, bore_diameter: 2.0625 INCHES NOMINAL IN, load_direction: RADIAL, inner_ring_width: 0.2810 INCHES NOMINAL IN, outer_ring_width: 0.2500 INCHES NOMINAL IN, style_designator: SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-142-4340, 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
177030-85
NSN: 3110-00-142-4340
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
bore_diameter2.0625 INCHES NOMINAL IN
load_directionRADIAL
inner_ring_width0.2810 INCHES NOMINAL IN
outer_ring_width0.2500 INCHES NOMINAL IN
style_designatorSINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE
overall_outside_diameter2.6250 INCHES NOMINAL IN
lubrication_material_document_and_classificationMIL-G-3278 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-00-142-4340
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 177030-85 · 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: 0.2500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE
•
OVERALL OUTSIDE DIAMETER: 2.6250 INCHES NOMINAL IN
•
LOAD DIRECTION: RADIAL
•
BORE DIAMETER: 2.0625 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-3278 MIL SPEC SINGLE MATERIAL RESPONSE
•
INNER RING WIDTH: 0.2810 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OUTER RING WIDTH0.2500 INCHES NOMINAL IN
STYLE DESIGNATORSINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE
OVERALL OUTSIDE DIAMETER2.6250 INCHES NOMINAL IN
LOAD DIRECTIONRADIAL
BORE DIAMETER2.0625 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING OVERALL
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-3278 MIL SPEC SINGLE MATERIAL RESPONSE
INNER RING WIDTH0.2810 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
A545Reference document
Same NSN cross-reference
Reference document — Secondary reference
A545FS160Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 177030-85?
177030-85 is a BEARING,BALL,AIRFRAME.
What parts can replace 177030-85?
There are 2 known substitutes for 177030-85: A545, A545FS160. Substitute compatibility should be verified for your specific system.
What is the NSN for 177030-85?
177030-85 is cataloged in the U.S. Government catalog under NSN 3110-00-142-4340. 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.