PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

77R2X1SBearing,ball,annular

General Motors Corp · NSN 3110-00-277-0019 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-277-0019 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-277-0019. Primary manufacturer part number: 77R2X1S.
Features
  • Bearing,ball,annular — FSC 3110
  • Bore Diameter: 0.1250 INCHES NOMINAL IN
  • Internal Fit-Up Designation: STANDARD
  • Shield Quantity: 2
  • Surface Finish: GROUND
  • Lubrication Material Document and Classification: MIL-L-15719 MIL SPEC SINGLE MATERIAL RESPONSE
  • Load Direction: RADIAL
  • Bore Shape: STRAIGHT
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-277-0019, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is General Motors Corp. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-277-0019
Primary Part Number77R2X1S
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerGeneral Motors Corp
StatusACTIVE
Bore Diameter0.1250 INCHES NOMINAL IN
Internal Fit-Up DesignationSTANDARD
Shield Quantity2
Surface FinishGROUND
Lubrication Material Document and ClassificationMIL-L-15719 MIL SPEC SINGLE MATERIAL RESPONSE
Load DirectionRADIAL
Bore ShapeSTRAIGHT
Standard Tolerance DesignationABEC NO.1
Lubrication MaterialGREASE
Retainer Fabrication MethodPRESSED
MaterialSTEEL OVERALL
Overall Outside Diameter0.3750 INCHES NOMINAL IN
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-155-9589102-5532P1 INTERCHANGEABLE
Bearing,ball,annular
Raytheon Company Dba Raytheon
3110-01-073-72086157-P-36-13 INTERCHANGEABLE
Bearing
Aerocontrolex Group, Inc. Div Talley Actuators
3110-01-184-000433KDD3 INTERCHANGEABLE
Bearing,ball,annular
Timken Co Div the Timken Company
Cross-Reference Index
Part NumberManufacturer
P9618500-19 General Electric Company (USA)
77R2X1S General Motors Corp Delco Moraine Ndh Div (USA)
77R2X1S PRIMARY General Motors Corp (USA)
33KDD3 Timken Co Div the Timken Company (USA)
R2FFMB106A020H76B0000-0 Skf Usa Inc. (USA)
Related Parts
3110-00-155-9589INTERCHANGEABLE
BEARING,BALL,ANNULAR
102-5532P1
3110-01-073-7208INTERCHANGEABLE
BEARING
6157-P-36-13
3110-01-184-0004INTERCHANGEABLE
BEARING,BALL,ANNULAR
33KDD3

Frequently Asked Questions

What is NSN 3110-00-277-0019?

NSN 3110-00-277-0019 is a Bearing,ball,annular, manufactured by General Motors Corp, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-277-0019?

NSN 3110-00-277-0019 has 5 cross-referenced part numbers: P9618500-19 (General Electric Company), 77R2X1S (General Motors Corp Delco Moraine Ndh Div), 77R2X1S (General Motors Corp), 33KDD3 (Timken Co Div the Timken Company), R2FFMB106A020H76B0000-0 (Skf Usa Inc.).

What NSN replaces 3110-00-277-0019?

There are 3 known substitutes for 3110-00-277-0019: 3110-00-155-9589, 3110-01-073-7208, 3110-01-184-0004. Verify interchangeability with system specifications before substitution.

What are the specifications of 77R2X1S?

Key specifications for 77R2X1S: Bore Diameter: 0.1250 INCHES NOMINAL IN; Internal Fit-Up Designation: STANDARD; Shield Quantity: 2; Surface Finish: GROUND. 14 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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