The Ring,bearing,inner, cataloged under National Stock Number 3110-01-491-4574, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Trelleborg Sealing Solutions Us, Inc.. The record lists 2 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Ring,bearing,inner |
| FSC / FSG | 3110 — Bearings, Antifriction, Unmounted (FSG 31) |
| Manufacturers | Trelleborg Sealing Solutions Us, Inc. (CAGE 09257); Rexnord Industries, Llc Div Aerosspace Bearing Operation (CAGE 77896) |
| Parameter | Value |
|---|---|
| NSN | 3110-01-491-4574 |
| Primary Part Number | 566-6985427-26 |
| Item Name | Ring,bearing,inner |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Trelleborg Sealing Solutions Us, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| 566-6985427-26 PRIMARY | Trelleborg Sealing Solutions Us, Inc. (USA) |
| 501-0188-127 PRIMARY | Rexnord Industries, Llc Div Aerosspace Bearing Operation (USA) |
| Reference | Meaning |
|---|---|
| H6210103A-26 | 5/9 Secondary reference U.S. Government activity |
| H621--0101-26 | 5/9 Secondary reference U.S. Government activity |
| H621-0103-26 | 5/9 Secondary reference U.S. Government activity |
| 566-6985427-26 | 5/9 Secondary reference Naval Sea Systems Command |
| GBZUE1389-TXMM | 5/9 Secondary reference Trelleborg Sealing Solutions Us, Inc. |
| 566-6985427 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3110-01-491-4574 is a Ring,bearing,inner, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-491-4574 has 2 manufacturer part numbers on file: 566-6985427-26 (Trelleborg Sealing Solutions Us, Inc.), 501-0188-127 (Rexnord Industries, Llc Div Aerosspace Bearing Operation).
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.