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Technical Data Sheet
PartsTable / COMPONENT / 1076-78
1076-78 ✓ 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

MOUNTING BASE,ELECTRICAL EQUIPME. Key specifications include material: STEEL CORROSION RESISTING OVERALL, bore_shape: STRAIGHT, flange_width: 0.0620 INCHES NOMINAL IN, bore_diameter: 0.3750 INCHES NOMINAL IN, overall_width: 0.2812 INCHES NOMINAL IN, load_direction: RADIAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-787-8906, 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
1076-78
NSN: 3110-00-787-8906
FSC: 3110
CAGE: 72314 — BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
bore_shapeSTRAIGHT
flange_width0.0620 INCHES NOMINAL IN
bore_diameter0.3750 INCHES NOMINAL IN
overall_width0.2812 INCHES NOMINAL IN
load_directionRADIAL
surface_finishGROUND
shield_quantity2
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
lubrication_materialGREASE
flange_outside_diameter0.9690 INCHES NOMINAL IN
internal_fit-up_designationSTANDARD
NSN3110-00-787-8906
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1076-78 · 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
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
FLANGE OUTSIDE DIAMETER: 0.9690 INCHES NOMINAL IN
•
RETAINER FABRICATION METHOD: PRESSED
•
BORE SHAPE: STRAIGHT
•
OUTER RING OUTSIDE DIAMETER: 0.8750 INCHES NOMINAL IN
•
LUBRICATION MATERIAL: GREASE
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
•
SURFACE FINISH: GROUND
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL FIT-UP DESIGNATIONSTANDARD
FLANGE OUTSIDE DIAMETER0.9690 INCHES NOMINAL IN
RETAINER FABRICATION METHODPRESSED
BORE SHAPESTRAIGHT
OUTER RING OUTSIDE DIAMETER0.8750 INCHES NOMINAL IN
LUBRICATION MATERIALGREASE
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
SURFACE FINISHGROUND
LOAD DIRECTIONRADIAL
SHIELD QUANTITY2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
PA1104HGInterchangeable
interchangeable cross-reference
interchangeable
1001-042Interchangeable
interchangeable cross-reference
interchangeable
73B10017Interchangeable
interchangeable cross-reference
interchangeable
45285Interchangeable
interchangeable cross-reference
interchangeable
B-28Interchangeable
interchangeable cross-reference
interchangeable
1781-0875Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1076-78?
1076-78 is a MOUNTING BASE,ELECTRICAL EQUIPME.
What parts can replace 1076-78?
There are 31 known substitutes for 1076-78: PA1104HG, 1001-042, 73B10017 and 28 more. Substitute compatibility should be verified for your specific system.
Is 1076-78 still available?
1076-78 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026