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Technical Data Sheet
PartsTable / COMPONENT / 2558-2
2558-2 ✓ 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

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: COPPER ALLOY OVERALL, cone_width: 1.0000 INCHES NOMINAL IN, head_style: HEXAGON, grip_length: 0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN, head_height: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN, corner_shape: SQUARE ALL CORNERS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-106-6256, 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
2558-2
NSN: 3110-00-106-6256
FSC: 3110
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
cone_width1.0000 INCHES NOMINAL IN
head_styleHEXAGON
grip_length0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
head_height0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
corner_shapeSQUARE ALL CORNERS
thread_class3A A
bore_diameter1.7500 INCHES NOMINAL IN
thread_length0.500 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
overall_length0.8125 INCHES NOMINAL IN
fastener_length0.953 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
hardness_rating32.0 ROCKWELL E NOMINAL OVERALL
NSN3110-00-106-6256
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 2558-2 · 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
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
•
CONE CORNER RADIUS: 0.2000 INCHES NOMINAL IN
•
BORE DIAMETER: 1.7500 INCHES NOMINAL IN
•
CONE WIDTH: 1.0000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
CONE CORNER RADIUS0.2000 INCHES NOMINAL IN
BORE DIAMETER1.7500 INCHES NOMINAL IN
CONE WIDTH1.0000 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
AN5-7Interchangeable
interchangeable cross-reference
interchangeable
255-82Interchangeable
interchangeable cross-reference
interchangeable
21399Interchangeable
interchangeable cross-reference
interchangeable
947227Interchangeable
interchangeable cross-reference
interchangeable
49660HInterchangeable
interchangeable cross-reference
interchangeable
JHP39-22Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2558-2?
2558-2 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 2558-2?
There are 10 known substitutes for 2558-2: AN5-7, 255-82, 21399 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2558-2?
2558-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-106-6256. 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