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Technical Data Sheet
PartsTable / COMPONENT / 77-205
77-205 ✓ 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

SOCKET,PLUG-IN ELECTRONIC COMPON. Key specifications include material: COPPER ALLOY 511 CONTACT, body_style: TOP MOUNT W/CENTER THRU HOLE, bore_shape: STRAIGHT, bore_diameter: 25.00 MILLIMETERS NOMINAL MM, overall_width: 15.0 MILLIMETERS NOMINAL MM, load_direction: RADIAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-155-6648, 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
77-205
NSN: 3110-00-155-6648
FSC: 3110
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY 511 CONTACT
body_styleTOP MOUNT W/CENTER THRU HOLE
bore_shapeSTRAIGHT
bore_diameter25.00 MILLIMETERS NOMINAL MM
overall_width15.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
overall_height0.874 INCHES NOMINAL IN
surface_finishGROUND
mounting_methodBODY THROUGH HOLE
shield_quantity2
overall_diameter1.125 INCHES NOMINAL IN
style_designatorLOADING GROOVE, NON-SEPARABLE
NSN3110-00-155-6648
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 77-205 · 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
•
LOAD DIRECTION: RADIAL
•
LUBRICATION MATERIAL: GREASE
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
SURFACE FINISH: GROUND
•
SHIELD QUANTITY: 2
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
BORE SHAPE: STRAIGHT
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: DOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
LOAD DIRECTIONRADIAL
LUBRICATION MATERIALGREASE
STANDARD TOLERANCE DESIGNATIONABEC NO.1
SURFACE FINISHGROUND
SHIELD QUANTITY2
INTERNAL FIT-UP DESIGNATIONSTANDARD
BORE SHAPESTRAIGHT
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONDOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIALSTEEL SHIELD
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
3110001556704Interchangeable
interchangeable cross-reference
interchangeable
208MFFInterchangeable
interchangeable cross-reference
interchangeable
40BL02JPPInterchangeable
interchangeable cross-reference
interchangeable
77-205Interchangeable
interchangeable cross-reference
interchangeable
338557Interchangeable
interchangeable cross-reference
interchangeable
1205MInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77-205?
77-205 is a SOCKET,PLUG-IN ELECTRONIC COMPON.
What parts can replace 77-205?
There are 15 known substitutes for 77-205: 3110001556704, 208MFF, 40BL02JPP and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 77-205?
77-205 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-155-6648. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026