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88503 — ACTUATOR,ELECTROMECHANICAL,ROTAR

✓ Government record, cited
InLine · TAPERED BEARING
PRODUCT OVERVIEW

88503: ACTUATOR,ELECTROMECHANICAL,ROTAR.

ACTUATOR,ELECTROMECHANICAL,ROTAR. Key specifications include material: STEEL INNER RING, bore_shape: STRAIGHT, bore_diameter: 17.00 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND, inner_ring_width: 0.6540 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-005-5995, 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
88503
NSN: 3110-00-005-5995
NIINs: 000055995, 001563502, 011596564, 016890786
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 23043 — N T N BEARING CORP OF AMERICA (USA)
SPECIFICATIONS
materialSTEEL INNER RING
bore_shapeSTRAIGHT
bore_diameter17.00 MILLIMETERS NOMINAL MM
seal_quantity2
load_directionRADIAL
surface_finishGROUND
inner_ring_width0.6540 INCHES NOMINAL IN
outer_ring_width0.4720 INCHES NOMINAL IN
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
bearing_seal_typeCONTACT
lubrication_materialGREASE
end_item_identificationCONTROLLER AS
NSN3110-00-005-5995
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 88503 · InLine ⚠ 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
•
BEARING SEAL TYPE: CONTACT
•
LUBRICATION MATERIAL: GREASE
•
OUTER RING WIDTH: 0.4724 INCHES NOMINAL IN
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 1.5748 INCHES NOMINAL IN
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS
BEARING SEAL TYPECONTACT
LUBRICATION MATERIALGREASE
OUTER RING WIDTH0.4724 INCHES NOMINAL IN
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL OUTSIDE DIAMETER1.5748 INCHES NOMINAL IN
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
SEAL QUANTITY2
SUBSTITUTES & CROSS-REFERENCES 1
46911Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 88503?
88503 is a ACTUATOR,ELECTROMECHANICAL,ROTAR manufactured by InLine.
What parts can replace 88503?
There is 1 known substitute for 88503: 46911. Substitute compatibility should be verified for your specific system.
What is the NSN for 88503?
88503 is cataloged in the U.S. Government catalog under NSN 3110-00-005-5995. 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.