PartsTable
Technical Data Sheet
51840-3 ✓ 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 BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include lens_type: FLAT, RECTANGULAR SINGLE LIGHT FIRST POSITION HORIZONTAL, lens_color: COLORLESS SINGLE LIGHT FIRST POSITION HORIZONTAL, lens_legend: S T O SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A, filter_color: GREEN SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A, overall_width: 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN, overall_height: 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-198-2079, 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
51840-3
NSN: 3110-00-198-2079
FSC: 3110
CAGE: 64731 — WESTERN SKY INDUSTRIES INC DBA ELECTROMECH TECHOLOGIES (USA)
SPECIFICATIONS
lens_typeFLAT, RECTANGULAR SINGLE LIGHT FIRST POSITION HORIZONTAL
lens_colorCOLORLESS SINGLE LIGHT FIRST POSITION HORIZONTAL
lens_legendS T O SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
filter_colorGREEN SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
lens_quantity1
overall_width0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN
overall_height0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN
overall_length1.600 INCHES MINIMUM AND 1.620 INCHES MAXIMUM IN
filter_quantity1
mounting_methodPUSH-IN LENS
special_featuresINDICATOR SHALL BE KEYED SO THE LEGEND SHALL READ TOP TO BOTTOM; OPERATES AT 0 TO 70000 FT ALTITUDE FT
style_designatorRECTANGULAR FRAME TYPE
NSN3110-00-198-2079
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 51840-3 · 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
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
LOAD DIRECTION: RADIAL
MATERIAL: STEEL OUTER RING
BEARING SEAL TYPE: CONTACT
RETAINER FABRICATION METHOD: PRESSED
SEAL QUANTITY: 2
TECHNICAL CHARACTERISTICS (FLIS)
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
LOAD DIRECTIONRADIAL
MATERIALSTEEL OUTER RING
BEARING SEAL TYPECONTACT
LOAD DIRECTIONRADIAL
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
RETAINER FABRICATION METHODPRESSED
SEAL QUANTITY2
SEAL QUANTITY2
SURFACE FINISHGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
10-81886Interchangeable
interchangeable cross-reference
interchangeable
Z99803X1830BC3Interchangeable
interchangeable cross-reference
interchangeable
151248Interchangeable
interchangeable cross-reference
interchangeable
203SZZCInterchangeable
interchangeable cross-reference
interchangeable
203SRRC01STA003A48CInterchangeable
interchangeable cross-reference
interchangeable
6817Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51840-3?
51840-3 is a BEARING,BALL,ANNULAR.
What parts can replace 51840-3?
There are 20 known substitutes for 51840-3: 10-81886, Z99803X1830BC3, 151248 and 17 more. Substitute compatibility should be verified for your specific system.
Is 51840-3 still available?
51840-3 is currently cancelled.
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