N1803S — Technical Data Sheet

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— · 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 BEARING,BALL,THRUST is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, alignment_type: RIGID, overall_height: 0.5510 INCHES NOMINAL IN, surface_finish: GROUND, style_designator: GROOVED RACE SURFACE, bore_smallest_diameter: 0.5902 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-00-554-5724, 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

N1803S

NSN: 3110-00-554-5724
FSC: 3110
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)

SPECIFICATIONS

material	STEEL OVERALL
alignment_type	RIGID
overall_height	0.5510 INCHES NOMINAL IN
surface_finish	GROUND
style_designator	GROOVED RACE SURFACE
bore_smallest_diameter	0.5902 INCHES NOMINAL IN
overall_outside_diameter	1.3780 INCHES NOMINAL IN
retainer_fabrication_method	PRESSED
standard_tolerance_designation	AFBMA STD TOLERANCE FOR THRUST BEARINGS
thrust_directional_capability_designation	SINGLE
NSN	3110-00-554-5724

COMPONENT DIAGRAM

KEY FEATURES

•

BORE SMALLEST DIAMETER: 0.5902 INCHES NOMINAL IN

•

THRUST DIRECTIONAL CAPABILITY DESIGNATION: SINGLE

•

RETAINER FABRICATION METHOD: PRESSED

•

STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR THRUST BEARINGS

•

SURFACE FINISH: GROUND

•

ALIGNMENT TYPE: RIGID

•

OVERALL OUTSIDE DIAMETER: 1.3780 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

BORE SMALLEST DIAMETER	0.5902 INCHES NOMINAL IN
THRUST DIRECTIONAL CAPABILITY DESIGNATION	SINGLE
RETAINER FABRICATION METHOD	PRESSED
STANDARD TOLERANCE DESIGNATION	AFBMA STD TOLERANCE FOR THRUST BEARINGS
SURFACE FINISH	GROUND
ALIGNMENT TYPE	RIGID
OVERALL HEIGHT	0.5510 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER	1.3780 INCHES NOMINAL IN
STYLE DESIGNATOR	GROOVED RACE SURFACE
MATERIAL	STEEL OVERALL

VERIFIED SUBSTITUTES & CROSS-REFERENCES 4

1102InterchangeableGOVERNMENT REGISTRY

interchangeable cross-reference

interchangeable

72-6970-936InterchangeableGOVERNMENT REGISTRY

interchangeable cross-reference

interchangeable

138-54InterchangeableGOVERNMENT REGISTRY

interchangeable cross-reference

interchangeable

1103FInterchangeableGOVERNMENT REGISTRY

Same NIIN cross-reference

interchangeable

LIFECYCLE

StatusACTIVEGOVERNMENT REGISTRY

AvailabilityOEM and secondary market

RoHS CompliantEAR99Not HAZMAT

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FREQUENTLY ASKED QUESTIONS

What is N1803S?

N1803S is a BEARING,BALL,THRUST.

What parts can replace N1803S?

There are 4 known substitutes for N1803S: 1102, 72-6970-936, 138-54 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for N1803S?

N1803S is cataloged in the Federal Logistics Information System under NSN 3110-00-554-5724. This indicates validated use in U.S. government and defense supply chains.

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N1803S — Technical Data Sheet

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