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40S11 — Technical Data Sheet

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— · 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 CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: COTTON COVERING SINGLE COVERING MATERIAL, thickness: 0.438 INCHES NOMINAL SINGLE WINDING IN, outside_width: 2.312 INCHES NOMINAL SINGLE WINDING IN, outside_length: 4.188 INCHES NOMINAL SINGLE WINDING IN, coil_inside_width: 1.188 INCHES NOMINAL SINGLE WINDING IN, coil_inside_length: 3.062 INCHES NOMINAL SINGLE WINDING IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-00-100-0630, 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
40S11
NSN: 3110-00-100-0630
FSC: 3110
CAGE: 51626 — GOULD & EBERHARDT GEAR MCHY (USA)
SPECIFICATIONS
materialCOTTON COVERING SINGLE COVERING MATERIAL
thickness0.438 INCHES NOMINAL SINGLE WINDING IN
outside_width2.312 INCHES NOMINAL SINGLE WINDING IN
outside_length4.188 INCHES NOMINAL SINGLE WINDING IN
coil_inside_width1.188 INCHES NOMINAL SINGLE WINDING IN
coil_inside_length3.062 INCHES NOMINAL SINGLE WINDING IN
conductor_wire_width0.375 INCHES NOMINAL SINGLE WINDING IN
fsc_application_dataSTARTER,ENGINE,ELECTRICAL,NONAIRCRAFT
coil_type_and_quantity1 CURVED
conductor_turn_quantity6.00 SINGLE WINDING
conductor_wire_thickness0.060 INCHES NOMINAL SINGLE WINDING IN
terminal_type_and_quantity2 FLAT WIRE LEAD ALL TERMINALS
NSN3110-00-100-0630
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 40S11 · 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: 0.0460 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
OUTSIDE DIAMETER: 1.3775 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
STYLE DESIGNATOR: NORMAL ANGLE
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS
BACKFACE CORNER RADIUS0.0460 INCHES NOMINAL IN
OVERALL WIDTH0.3437 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
OUTSIDE DIAMETER1.3775 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
STYLE DESIGNATORNORMAL ANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
40S11NInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
40S11N/1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
9740InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
11DMAS1009InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MAS1009InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
50251InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40S11?
40S11 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 40S11?
There are 18 known substitutes for 40S11: 40S11N, 40S11N/1, 9740 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40S11?
40S11 is cataloged in the Federal Logistics Information System under NSN 3110-00-100-0630. 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: September 2026