The Bearing,ball,annular, cataloged under National Stock Number 3110-00-198-1638, 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 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-198-1638 |
| Primary Part Number | 55503 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — No Item Name Available |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Overall Outside Diameter | 40.00 MILLIMETERS NOMINAL MM |
| Standard Tolerance Designation | ABEC NO.1 |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Contact Angle | 25.0 DEGREES MAXIMUM |
| Retainer Fabrication Method | PRESSED |
| Shield Quantity | 2 |
| Internal Fit-Up Designation | STANDARD |
| Standard Tolerance Designation | ABEC NO.1 |
| Lubrication Material | SILICON |
| Contact Angle | 25.0 DEGREES MAXIMUM |
| Bore Shape | STRAIGHT |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material | STEEL OVERALL |
| Load Direction | ANGULAR |
| Load Direction | ANGULAR |
| Surface Finish | GROUND |
| Internal Fit-Up Contact Angular Direction | OUTWARD CONVERGENT |
| Lubrication Material | SILICON |
| Internal Fit-Up Designation | STANDARD |
| Material | STEEL OVERALL |
| Bore Diameter | 17.00 MILLIMETERS NOMINAL MM |
| Bore Shape | STRAIGHT |
| Internal Fit-Up Contact Angular Direction | OUTWARD CONVERGENT |
| Shield Quantity | 2 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 55503X1CJ | General Motors Corp Delco Moraine Ndh Div (USA) |
| FF-B-171 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 55503SILIC0NEGREASE | General Motors Corp (USA) |
| 55503SILC0NE | General Motors Corp (USA) |
| 55503 | General Motors Corp Delco Moraine Ndh Div (USA) |
| 55503 PRIMARY | General Motors Corp (USA) |
| 55503SILC0NE | General Motors Corp Delco Moraine Ndh Div (USA) |
| 55503SILIC0NEGREASE | General Motors Corp Delco Moraine Ndh Div (USA) |
NSN 3110-00-198-1638 is a Bearing,ball,annular, manufactured by General Motors Corp, classified under FSC 3110 (No Item Name Available). Status: active.
NSN 3110-00-198-1638 has 8 cross-referenced part numbers: 55503X1CJ (General Motors Corp Delco Moraine Ndh Div), FF-B-171 (Federal Specifications Promulgated by General Services Administration Washington DC), 55503SILIC0NEGREASE (General Motors Corp), 55503SILC0NE (General Motors Corp), 55503 (General Motors Corp Delco Moraine Ndh Div) and 3 more.
There are 5 known substitutes for 3110-00-198-1638: 2520-00-120-2131, 3110-00-555-5380, 3040-00-652-4190 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 55503: Overall Outside Diameter: 40.00 MILLIMETERS NOMINAL MM; Overall Width: 0.6875 INCHES NOMINAL IN; Standard Tolerance Designation: ABEC NO.1; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE. 25 total characteristics are documented in the Federal Logistics Information System.