PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

KP3ABearing,ball,airframe

Simpson Engineering Co · NSN 3110-00-901-1045 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-901-1045 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-901-1045. Primary manufacturer part number: KP3A.
Features
  • Bearing,ball,airframe — FSC 3110
  • Surface Treatment: CADMIUM OUTER RING
  • Material: STEEL BALL
  • Style Designator: SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE
  • Surface Treatment: CADMIUM INNER RING
  • Load Direction: RADIAL
  • Seal Quantity: 2
  • Standard Tolerance Designation: ABEC NO.7
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Ball construction
General Description

The Bearing,ball,airframe, cataloged under National Stock Number 3110-00-901-1045, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Simpson Engineering Co. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-901-1045
Primary Part NumberKP3A
Item NameBearing,ball,airframe
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSimpson Engineering Co
StatusACTIVE
Surface TreatmentCADMIUM OUTER RING
MaterialSTEEL BALL
Style DesignatorSINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE
Surface TreatmentCADMIUM INNER RING
Load DirectionRADIAL
Seal Quantity2
Standard Tolerance DesignationABEC NO.7
Outer Ring Width0.2030 INCHES NOMINAL IN
Inner Ring Width0.2450 INCHES NOMINAL IN
Lubrication MaterialGREASE
MaterialSTEEL INNER RING
MaterialPLASTIC SEAL
MaterialSTEEL OUTER RING
Overall Outside Diameter0.6350 INCHES NOMINAL IN
Bore Diameter0.1900 INCHES NOMINAL IN
Lubrication Material Document and ClassificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-027-8758MS27641-3 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-142-4451C240239-2 INTERCHANGEABLE
Bearing,ball,airframe
Raytheon Company Dba Raytheon Co
Cross-Reference Index
Part NumberManufacturer
KF3A Timken Co Div the Timken Company (USA)
KP3A PRIMARY Simpson Engineering Co (USA)
Related Parts
3110-00-027-8758INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-3
3110-00-142-4451INTERCHANGEABLE
BEARING,BALL,AIRFRAME
C240239-2

Frequently Asked Questions

What is NSN 3110-00-901-1045?

NSN 3110-00-901-1045 is a Bearing,ball,airframe, manufactured by Simpson Engineering Co, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-901-1045?

NSN 3110-00-901-1045 has 2 cross-referenced part numbers: KF3A (Timken Co Div the Timken Company), KP3A (Simpson Engineering Co).

What NSN replaces 3110-00-901-1045?

There are 2 known substitutes for 3110-00-901-1045: 3110-00-027-8758, 3110-00-142-4451. Verify interchangeability with system specifications before substitution.

What are the specifications of KP3A?

Key specifications for KP3A: Surface Treatment: CADMIUM OUTER RING; Material: STEEL BALL; Style Designator: SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE; Surface Treatment: CADMIUM INNER RING. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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