The Bearing,ball,annular, cataloged under National Stock Number 3110-00-155-8909, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Fag Bearings Corporation. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-155-8909 |
| Primary Part Number | S12RPP |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Fag Bearings Corporation |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Lubrication Material | GREASE |
| Internal Fit-Up Designation | STANDARD |
| Surface Finish | GROUND |
| Shield Quantity | 2 |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Overall Outside Diameter | 2.2500 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 | 1.2500 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Lubrication Material Document and Classification | MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE |
| 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 |
|---|---|
| S12RPP PRIMARY | Fag Bearings Corporation (USA) |
| R20FF PRIMARY | Schatz Bearing Corporation Dba Schatz Bearing Corp (USA) |
| 319687-433 PRIMARY | Naval Sea Systems Command (USA) |
| 77R20 PRIMARY | General Motors Corp (USA) |
| S12SFF PRIMARY | Skf Usa Inc. (USA) |
| 177039-102 PRIMARY | Naval Sea Systems Command (USA) |
| 261349-4 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| FFB171 | 4/1 Identification reference U.S. Government activity |
| S12RFF | 5/9 Secondary reference Schatz Bearing Corporation Dba Schatz Bearing Corp |
| 319687-433 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 177039-102 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 77R20 | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
| 261349-4 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 3110-00-155-8909 is a Bearing,ball,annular, manufactured by Fag Bearings Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-155-8909 has 7 manufacturer part numbers on file: S12RPP (Fag Bearings Corporation), R20FF (Schatz Bearing Corporation Dba Schatz Bearing Corp), 319687-433 (Naval Sea Systems Command), 77R20 (General Motors Corp), S12SFF (Skf Usa Inc.) and 2 more.
1 possible match (shared part number, not a government interchangeability claim): 3110-01-057-5179. Verify interchangeability with system specifications before substitution.
Key specifications for S12RPP: Retainer Fabrication Method: PRESSED; Lubrication Material: GREASE; Internal Fit-Up Designation: STANDARD; Surface Finish: GROUND. 15 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.