The Roller,linear-Rotary Motion, cataloged under National Stock Number 3120-00-412-8985, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3120-00-412-8985 |
| Item Name | Roller,linear-Rotary Motion |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Status | ACTIVE |
| Style Designator | PLAIN, COUNTERBORED |
| Outside Diameter | 0.3120 INCHES NOMINAL IN |
| Counterbore Depth | 0.0605 INCHES NOMINAL IN |
| Counterbore Diameter | 0.2510 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | STEEL |
| Face Width | 0.1860 INCHES NOMINAL IN |
| Bore Inside Diameter | 0.1890 INCHES NOMINAL 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 |
|---|---|
| 113982 | C/1 Advisory reference — outside the item-of-supply concept Lucent Technologies Inc Corporate Headquarters |
| 113982 | 3/9 Design control — primary reference American Telephone and Telegraph Co |
| 113982 | 5/9 Secondary reference At and T Corp |
NSN 3120-00-412-8985 is a Roller,linear-Rotary Motion, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2910-01-066-7740. Verify interchangeability with system specifications before substitution.
Key specifications for 3120-00-412-8985: Style Designator: PLAIN, COUNTERBORED; Outside Diameter: 0.3120 INCHES NOMINAL IN; Counterbore Depth: 0.0605 INCHES NOMINAL IN; Counterbore Diameter: 0.2510 INCHES NOMINAL IN. 8 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.