PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 177003-91
177003-91 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The HOUSING,MECHANICAL DRIVE is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: HOUSING,MECHANICAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-293-9338, 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
177003-91
NSN: 3110-00-293-9338
FSC: 3110
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyHOUSING,MECHANICAL
NSN3110-00-293-9338
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 177003-91 · 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
•
MATERIAL: STEEL OVERALL
•
BORE DIAMETER: 45.00 MILLIMETERS NOMINAL MM
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
RETAINER FABRICATION METHOD: PRESSED
•
LOAD DIRECTION: RADIAL
•
OVERALL OUTSIDE DIAMETER: 85.00 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
BORE DIAMETER45.00 MILLIMETERS NOMINAL MM
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
STANDARD TOLERANCE DESIGNATIONABEC NO.1
RETAINER FABRICATION METHODPRESSED
LOAD DIRECTIONRADIAL
OVERALL OUTSIDE DIAMETER85.00 MILLIMETERS NOMINAL MM
OVERALL WIDTH11.0 MILLIMETERS NOMINAL MM
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
109AInterchangeable
interchangeable cross-reference
interchangeable
21149Interchangeable
interchangeable cross-reference
interchangeable
116A6567Interchangeable
interchangeable cross-reference
interchangeable
18156Interchangeable
interchangeable cross-reference
interchangeable
SC-C-28052Interchangeable
interchangeable cross-reference
interchangeable
SC-D-28052Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 177003-91?
177003-91 is a HOUSING,MECHANICAL DRIVE.
What parts can replace 177003-91?
There are 22 known substitutes for 177003-91: 109A, 21149, 116A6567 and 19 more. Substitute compatibility should be verified for your specific system.
Is 177003-91 still available?
177003-91 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026