The Bearing,ball,annular, cataloged under National Stock Number 3110-00-155-8900, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Schatz Bearing Corporation Dba Schatz Bearing Corp. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 10 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-155-8900 |
| Primary Part Number | R18F-1B1 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Schatz Bearing Corporation Dba Schatz Bearing Corp |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Internal Fit-Up Designation | STANDARD |
| Surface Finish | GROUND |
| Shield Quantity | 1 |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Overall Outside Diameter | 2.1250 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Departure From Cited Designator | AS MODIFIED BY OVERALL WIDTH,AS MODIFIED BY SHIELD QUANTITY |
| Nondefinitive Spec/std Data | 115 TYPE AND 00 GRADE |
| Load Direction | RADIAL |
| Standard Tolerance Designation | ABEC NO.1 |
| Bore Diameter | 1.1250 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| R18F-1B1 PRIMARY | Schatz Bearing Corporation Dba Schatz Bearing Corp (USA) |
| S11RPTF PRIMARY | Fag Bearings Corporation (USA) |
| 7R18X1E | General Motors Corp (USA) |
| 7R18X1A | General Motors Corp (USA) |
| S11RP PRIMARY | Fag Bearings Corporation (USA) |
| 319687-402 PRIMARY | Naval Sea Systems Command (USA) |
| 177039-90 PRIMARY | Naval Sea Systems Command (USA) |
| 7R18X1 | General Motors Corp (USA) |
| 145C964-2 PRIMARY | General Electric Company (USA) |
| 7R18 | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| 7R18 | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
| 7R18X1E | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
| 319687-402 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| S11RF | 5/9 Secondary reference Schatz Bearing Corporation Dba Schatz Bearing Corp |
| 177039-90 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 7R18X1 | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
| FFB171 | 4/1 Identification reference U.S. Government activity |
| 7R18X1A | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
NSN 3110-00-155-8900 is a Bearing,ball,annular, manufactured by Schatz Bearing Corporation Dba Schatz Bearing Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-155-8900 has 10 manufacturer part numbers on file: R18F-1B1 (Schatz Bearing Corporation Dba Schatz Bearing Corp), S11RPTF (Fag Bearings Corporation), 7R18X1E (General Motors Corp), 7R18X1A (General Motors Corp), S11RP (Fag Bearings Corporation) and 5 more.
Key specifications for R18F-1B1: Retainer Fabrication Method: PRESSED; Internal Fit-Up Designation: STANDARD; Surface Finish: GROUND; Shield Quantity: 1. 13 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.