The Bearing,ball,annular, cataloged under National Stock Number 3110-00-155-8908, 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 13 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-155-8908 |
| Primary Part Number | S12RP |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Fag Bearings Corporation |
| 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 | 2.2500 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 |
| 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 |
|---|---|
| S12RP PRIMARY | Fag Bearings Corporation (USA) |
| 7R20 PRIMARY | General Motors Corp (USA) |
| S12RPTF PRIMARY | Fag Bearings Corporation (USA) |
| S12SF PRIMARY | Skf Usa Inc. (USA) |
| 20BIC10JP PRIMARY | Anti-Friction Bearing Mfg Assn Inc the (USA) |
| 319687-403 PRIMARY | Naval Sea Systems Command (USA) |
| 177039-91 PRIMARY | Naval Sea Systems Command (USA) |
| 7R20X1 PRIMARY | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| 7R20X1 | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
| 20BIC10JP | 5/9 Secondary reference Paterson Gear Motor Div of Amtech Inc |
| FFB171 | 4/1 Identification reference U.S. Government activity |
| 319687-403 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 177039-91 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| C20SS | 5/9 Secondary reference Skf Industries Inc Nice Bearing Products Div |
| C20SS | C/1 Advisory reference — outside the item-of-supply concept Skf Usa Inc. |
| 7R20 | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
| P9618512-2 | 5/9 Secondary reference General Electric Company |
NSN 3110-00-155-8908 is a Bearing,ball,annular, manufactured by Fag Bearings Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-155-8908 has 8 manufacturer part numbers on file: S12RP (Fag Bearings Corporation), 7R20 (General Motors Corp), S12RPTF (Fag Bearings Corporation), S12SF (Skf Usa Inc.), 20BIC10JP (Anti-Friction Bearing Mfg Assn Inc the) and 3 more.
2 possible matches (shared part number, not a government interchangeability claim): 5930-00-280-1426, 4820-01-342-8631. Verify interchangeability with system specifications before substitution.
Key specifications for S12RP: 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.