PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

191001Bearing,ball,annular

Mpb Corporation Dba Mpb Corp · NSN 3110-00-278-6890 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-278-6890 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-278-6890. Primary manufacturer part number: 191001.
Features
  • Bearing,ball,annular — FSC 3110
  • Internal Fit-Up Designation: STANDARD
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE
  • Material: STEEL CORROSION RESISTING OVERALL
  • Bore Shape: STRAIGHT
  • Surface Finish: GROUND
  • Bore Diameter: 0.5000 INCHES NOMINAL IN
  • Shield Quantity: 1
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-278-6890, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Mpb Corporation Dba Mpb Corp. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 18 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-278-6890
Primary Part Number191001
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerMpb Corporation Dba Mpb Corp
StatusCANCELLED
Internal Fit-Up DesignationSTANDARD
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL CORROSION RESISTING OVERALL
Bore ShapeSTRAIGHT
Surface FinishGROUND
Bore Diameter0.5000 INCHES NOMINAL IN
Shield Quantity1
Retainer Fabrication MethodPRESSED
Standard Tolerance DesignationABEC NO.1
Load DirectionRADIAL
Overall Outside Diameter1.1250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
1660-00-065-82219776481-10 INTERCHANGEABLE
Parts Kit,regulator
Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force
5945-01-190-0315191-001 INTERCHANGEABLE
Relay,electromagnetic
Panametrics Llc
Cross-Reference Index
Part NumberManufacturer
SS7R8X1 General Motors Corp (USA)
SS7R8 General Motors Corp (USA)
SS7R8X1J General Motors Corp Delco Moraine Ndh Div (USA)
191001 PRIMARY Mpb Corporation Dba Mpb Corp (USA)
R8FST Skf Usa Inc. (USA)
191001 PRIMARY Rbc Aircraft Products, Inc. (USA)
R8FSTB106A006H14S0000-0 Skf Usa Inc. (USA)
191001 PRIMARY New Hampshire Ball Bearings Inc Div Precision Division (USA)
AS5KD5823A Timken Co Div the Timken Company (USA)
191001 Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA)
SSRI-1812ZRA1P25L01P New Hampshire Ball Bearings Inc Div Precision Division (USA)
SS7R8X149 General Motors Corp Delco Moraine Ndh Div (USA)
SS7R8X149 General Motors Corp (USA)
AS5KDE5823 Timken Co Div the Timken Company (USA)
AS5KDC2E5823 Timken Co Div the Timken Company (USA)
SS7R8 General Motors Corp Delco Moraine Ndh Div (USA)
SSRI-1812ZRA1P35LG68 New Hampshire Ball Bearings Inc Div Precision Division (USA)
SS7R8X1 General Motors Corp Delco Moraine Ndh Div (USA)
Related Parts
1660-00-065-8221INTERCHANGEABLE
PARTS KIT,REGULATOR
9776481-10
5945-01-190-0315INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
191-001

Frequently Asked Questions

What is NSN 3110-00-278-6890?

NSN 3110-00-278-6890 is a Bearing,ball,annular, manufactured by Mpb Corporation Dba Mpb Corp, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-278-6890?

NSN 3110-00-278-6890 has 18 cross-referenced part numbers: SS7R8X1 (General Motors Corp), SS7R8 (General Motors Corp), SS7R8X1J (General Motors Corp Delco Moraine Ndh Div), 191001 (Mpb Corporation Dba Mpb Corp), R8FST (Skf Usa Inc.) and 13 more.

What NSN replaces 3110-00-278-6890?

There are 2 known substitutes for 3110-00-278-6890: 1660-00-065-8221, 5945-01-190-0315. Verify interchangeability with system specifications before substitution.

What are the specifications of 191001?

Key specifications for 191001: Internal Fit-Up Designation: STANDARD; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE; Material: STEEL CORROSION RESISTING OVERALL; Bore Shape: STRAIGHT. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-278-6890 still in active supply?

NSN 3110-00-278-6890 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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