The Ring,bearing,inner, cataloged under National Stock Number 3110-00-366-2738, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-366-2738 |
| Primary Part Number | 8135970 |
| Item Name | Ring,bearing,inner |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc |
| Status | ACTIVE |
| Surface Finish | GROUND |
| Style Designator | INNER RING, BALL |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Overall Outside Diameter | 1.0500 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Bore Diameter | 0.7498 INCHES NOMINAL IN |
| Material | STEEL COMP E52100 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 |
|---|---|
| 8135970 PRIMARY | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc (USA) |
| Reference | Meaning |
|---|---|
| 8135970 | 3/9 Design control — primary reference General Motors Corp Electro-Motive Div |
| 8135970 | 5/9 Secondary reference General Motors Corp |
| 8135970-HK | 5/9 Secondary reference Hatch & Kirk, Inc. |
| 8135970-HK8 | 5/9 Secondary reference Hatch & Kirk, Inc. |
| 8135970-HK1 | 5/9 Secondary reference Hatch & Kirk, Inc. |
NSN 3110-00-366-2738 is a Ring,bearing,inner, manufactured by Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-366-2738 has 1 manufacturer part number on file: 8135970 (Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc).
Key specifications for 8135970: Surface Finish: GROUND; Style Designator: INNER RING, BALL; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Overall Width: 1.0820 INCHES NOMINAL IN. 7 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.