PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

38950-00903-103Bearing,ball,airframe

Rbc Aircraft Products, Inc. · NSN 3110-00-142-6571 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-142-6571 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-142-6571. Primary manufacturer part number: 38950-00903-103.
Features
  • Bearing,ball,airframe — FSC 3110
  • Overall Outside Diameter: 0.9014 INCHES NOMINAL IN
  • Inner Ring Width: 0.4840 INCHES NOMINAL IN
  • Bearing Seal Type: CONTACT
  • Lubrication Material: GREASE
  • Self-Alignment Location: INTERNAL
  • Load Direction: RADIAL
  • Alignment Type: SELF-ALIGNING
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Rubber Synthetic Seal construction
General Description

The Bearing,ball,airframe, cataloged under National Stock Number 3110-00-142-6571, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Rbc Aircraft Products, Inc.. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-142-6571
Primary Part Number38950-00903-103
Item NameBearing,ball,airframe
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerRbc Aircraft Products, Inc.
StatusACTIVE
Overall Outside Diameter0.9014 INCHES NOMINAL IN
Inner Ring Width0.4840 INCHES NOMINAL IN
Bearing Seal TypeCONTACT
Lubrication MaterialGREASE
Self-Alignment LocationINTERNAL
Load DirectionRADIAL
Alignment TypeSELF-ALIGNING
Outer Ring Width0.3350 INCHES NOMINAL IN
Seal Quantity2
Bore Diameter0.2500 INCHES NOMINAL IN
Lubrication Material Document and ClassificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
MaterialRUBBER SYNTHETIC SEAL
MaterialSTEEL INNER RING
MaterialSTEEL BALL
Surface TreatmentCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
MaterialSTEEL OUTER RING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-316-79774130612B10 INTERCHANGEABLE
Bearing,ball,airframe
Rbc Aircraft Products, Inc.
Cross-Reference Index
Part NumberManufacturer
MKSP4 New Hampshire Ball Bearings Inc Div Precision Division (USA)
38950-00903-103 PRIMARY Rbc Aircraft Products, Inc. (USA)
38950-00903-103 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)
3110PL1960140 Jednolity Indeks Materialowy - Uniform Material Index (POL)
38950-00903-103 PRIMARY New Hampshire Ball Bearings Inc Div Precision Division (USA)
MKSP4A1173 Timken Co Div the Timken Company (USA)
Related Parts
3110-00-316-7977INTERCHANGEABLE
BEARING,BALL,AIRFRAME
4130612B10

Frequently Asked Questions

What is NSN 3110-00-142-6571?

NSN 3110-00-142-6571 is a Bearing,ball,airframe, manufactured by Rbc Aircraft Products, Inc., classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-142-6571?

NSN 3110-00-142-6571 has 6 cross-referenced part numbers: MKSP4 (New Hampshire Ball Bearings Inc Div Precision Division), 38950-00903-103 (Rbc Aircraft Products, Inc.), 38950-00903-103 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 3110PL1960140 (Jednolity Indeks Materialowy - Uniform Material Index), 38950-00903-103 (New Hampshire Ball Bearings Inc Div Precision Division) and 1 more.

What NSN replaces 3110-00-142-6571?

There is 1 known substitute for 3110-00-142-6571: 3110-00-316-7977. Verify interchangeability with system specifications before substitution.

What are the specifications of 38950-00903-103?

Key specifications for 38950-00903-103: Overall Outside Diameter: 0.9014 INCHES NOMINAL IN; Inner Ring Width: 0.4840 INCHES NOMINAL IN; Bearing Seal Type: CONTACT; Lubrication Material: GREASE. 17 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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