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PartsTable / COMPONENT / SA540Z4
SA540Z4 ✓ 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,AIRFRAME is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, bore_diameter: 0.8746 INCHES MINIMUM AND 0.8751 INCHES MAXIMUM IN, load_direction: RADIAL, inner_ring_width: 0.2800 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN, outer_ring_width: 0.2500 INCHES NOMINAL IN, special_features: RADIAL CLEARANCE 0.0003 IN. MIN TO 0.0005 IN.

MAX IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-4484, 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
SA540Z4
NSN: 3110-00-227-4484
FSC: 3110
CAGE: 70854 — SCHAEFFLER AEROSPACE USA CORP DIV SCHAEFFLER AEROSPACE USA CORPORATION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
bore_diameter0.8746 INCHES MINIMUM AND 0.8751 INCHES MAXIMUM IN
load_directionRADIAL
inner_ring_width0.2800 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN
outer_ring_width0.2500 INCHES NOMINAL IN
special_featuresRADIAL CLEARANCE 0.0003 IN. MIN TO 0.0005 IN. MAX IN
style_designatorSINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE
lubrication_materialGREASE
overall_outside_diameter1.3120 INCHES MINIMUM AND 1.3127 INCHES MAXIMUM IN
retainer_fabrication_methodCOILED
lubrication_material_document_and_classificationMIL-G-3278 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-00-227-4484
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: SA540Z4 · 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
•
INNER RING WIDTH: 0.2800 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN
•
RETAINER FABRICATION METHOD: COILED
•
LOAD DIRECTION: RADIAL
•
LUBRICATION MATERIAL: GREASE
•
OUTER RING WIDTH: 0.2500 INCHES NOMINAL IN
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-3278 MIL SPEC SINGLE MATERIAL RESPONSE
•
STYLE DESIGNATOR: SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE
TECHNICAL CHARACTERISTICS (FLIS)
INNER RING WIDTH0.2800 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN
SPECIAL FEATURESRADIAL CLEARANCE 0.0003 IN. MIN TO 0.0005 IN. MAX IN
RETAINER FABRICATION METHODCOILED
LOAD DIRECTIONRADIAL
LUBRICATION MATERIALGREASE
OUTER RING WIDTH0.2500 INCHES NOMINAL IN
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-3278 MIL SPEC SINGLE MATERIAL RESPONSE
STYLE DESIGNATORSINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE
BORE DIAMETER0.8746 INCHES MINIMUM AND 0.8751 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER1.3120 INCHES MINIMUM AND 1.3127 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
294773Interchangeable
interchangeable cross-reference
interchangeable
AE10513Interchangeable
interchangeable cross-reference
interchangeable
M294773Interchangeable
interchangeable cross-reference
interchangeable
8551954Interchangeable
Same NIIN cross-reference
interchangeable
SSCSR14AS5052Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SA540Z4?
SA540Z4 is a BEARING,BALL,AIRFRAME.
What parts can replace SA540Z4?
There are 5 known substitutes for SA540Z4: 294773, AE10513, M294773 and 2 more. Substitute compatibility should be verified for your specific system.
Is SA540Z4 still available?
SA540Z4 is currently cancelled.
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Last verified: July 2026