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901806-2C — BEARING,BALL,DUPLEX

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

901806-2C: BEARING,BALL,DUPLEX.

The BEARING,BALL,DUPLEX is a the manufacturer industrial component. Key specifications include material: STEEL COMP 440C INNER RING, bore_diameter: 1.6247 INCHES MINIMUM AND 1.6250 INCHES MAXIMUM IN, overall_width: 0.2925 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN, load_direction: ANGULAR, surface_finish: GROUND, style_designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-160-2191, 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
901806-2C
NSN: 3110-01-160-2191
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 82577 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
materialSTEEL COMP 440C INNER RING
bore_diameter1.6247 INCHES MINIMUM AND 1.6250 INCHES MAXIMUM IN
overall_width0.2925 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
load_directionANGULAR
surface_finishGROUND
style_designatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
overall_outside_diameter1.8746 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
internal_fit-up_designationSTANDARD
retainer_fabrication_methodMACHINED
standard_tolerance_designationABEC NO. 5T
material_document_and_classificationUNABLE TO DECODE
lubrication_material_document_and_classificationMIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-01-160-2191
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 901806-2C · 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
•
RETAINER FABRICATION METHOD: MACHINED
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
•
MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
OVERALL OUTSIDE DIAMETER: 1.8746 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
•
LOAD DIRECTION: ANGULAR
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
OVERALL WIDTH0.2925 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER1.8746 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
LOAD DIRECTIONANGULAR
SPECIAL FEATURESINNER RACE,OUTER RACE,AND BALLS PASSIVATE PERQQ-P-35 ; LUBRICATE BY VACUUM IMPREGNATION CENTRIFUGE BEARING AT 200 PLUS OR MINUS 20 G FOR 2 TO 2.25OMINUTES ; INSCRIBED V MATCH MARK ON OUTSIDE DIAMETER OF BEARING ; PACKAGE PER MIL-B-117 TYPE 1 CLASS E G
STANDARD TOLERANCE DESIGNATIONABEC NO. 5T
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 3
AV104WI120CRVDB-171Reference document
Same NSN cross-reference
Reference document — Secondary reference
SR30524X2DBReference document
Same NSN cross-reference
Reference document — Secondary reference
AV104WI120CRVDBFS171Reference 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 901806-2C?
901806-2C is a BEARING,BALL,DUPLEX.
What parts can replace 901806-2C?
There are 3 known substitutes for 901806-2C: AV104WI120CRVDB-171, SR30524X2DB, AV104WI120CRVDBFS171. Substitute compatibility should be verified for your specific system.
What is the NSN for 901806-2C?
901806-2C is cataloged in the U.S. Government catalog under NSN 3110-01-160-2191. This indicates validated use in U.S. government and defense supply chains.
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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.