The Roller,linear-Rotary Motion, cataloged under National Stock Number 3120-00-070-1968, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3120-00-070-1968 |
| Item Name | Roller,linear-Rotary Motion |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Status | ACTIVE |
| Style Designator | PLAIN, COUNTERBORED |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| Counterbore Depth | 0.217 INCHES NOMINAL IN |
| Counterbore Diameter | 1.562 INCHES NOMINAL IN |
| Chamfer/radius of Outside Corner | 0.031 IN. RADIUS IN |
| Casehardening Indicator | CASEHARDENED |
| Material | STEEL |
| Face Width | 0.687 INCHES NOMINAL IN |
| Bore Inside Diameter | 0.984 INCHES MINIMUM AND 0.989 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 301134 | 5/2 Secondary reference U.S. Government activity |
| 5740E6074 | 5/2 Secondary reference U.S. Government activity |
| 320285 | 5/2 Secondary reference U.S. Government activity |
| 317900 | 5/2 Secondary reference U.S. Government activity |
| 0234919-00 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3120-00-070-1968 is a Roller,linear-Rotary Motion, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-165-9577, 5310-01-645-7914. Verify interchangeability with system specifications before substitution.
Key specifications for 3120-00-070-1968: Style Designator: PLAIN, COUNTERBORED; Outside Diameter: 2.000 INCHES NOMINAL IN; Counterbore Depth: 0.217 INCHES NOMINAL IN; Counterbore Diameter: 1.562 INCHES NOMINAL IN. 9 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.