PartsTable
Technical Data Sheet
258778 ✓ 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

BRACKET,INTERCYLINDER DEFLECTOR. Key specifications include material: STEEL OVERALL, overall_width: 0.7500 INCHES NOMINAL IN, outside_diameter: 3.8125 INCHES NOMINAL IN, special_features: AMPLIFIER,RADIO FREQUENCY, style_designator: NORMAL ANGLE, backface_corner_radius: 0.0625 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0298, 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
258778
NSN: 3110-00-100-0298
FSC: 3110
CAGE: 01957 — ACF INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.7500 INCHES NOMINAL IN
outside_diameter3.8125 INCHES NOMINAL IN
special_featuresAMPLIFIER,RADIO FREQUENCY
style_designatorNORMAL ANGLE
backface_corner_radius0.0625 INCHES NOMINAL IN
end_item_identificationAN/APG-63(V)
standard_tolerance_designationAFBMA CLASS 2
general_characteristics_item_descriptionMATL STEEL PER AMS 6350 OR AMS 6355,0.045 IN. MIN AND 0.055 IN. MAX THICK; HARDNESS PER ROCKWELL 30 N 55-60; 1 SLOT 0.4 IN. BY 0.28 IN.; 3 HOLES 0.161 IN. MIN AND 0.166 IN. MAX DIA IN
NSN3110-00-100-0298
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 258778 · 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
BACKFACE CORNER RADIUS: 0.0625 INCHES NOMINAL IN
OUTSIDE DIAMETER: 3.8125 INCHES NOMINAL IN
MATERIAL: STEEL OVERALL
STYLE DESIGNATOR: NORMAL ANGLE
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
TECHNICAL CHARACTERISTICS (FLIS)
BACKFACE CORNER RADIUS0.0625 INCHES NOMINAL IN
OUTSIDE DIAMETER3.8125 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
OVERALL WIDTH0.7500 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
42366Interchangeable
interchangeable cross-reference
interchangeable
F910Interchangeable
interchangeable cross-reference
interchangeable
94289Interchangeable
interchangeable cross-reference
interchangeable
372AInterchangeable
interchangeable cross-reference
interchangeable
2557Interchangeable
interchangeable cross-reference
interchangeable
CPA2400A001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 258778?
258778 is a BRACKET,INTERCYLINDER DEFLECTOR.
What parts can replace 258778?
There are 30 known substitutes for 258778: 42366, F910, 94289 and 27 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 258778?
258778 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0298. This indicates validated use in U.S. government and defense supply chains.
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