The Bearing,washer,thrust, cataloged under National Stock Number 3120-01-203-6563, 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8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 3120-01-203-6563 |
| Item Name | Bearing,washer,thrust |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Overall Thickness | 0.1250 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Material Document and Classification | QQ-B-613 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Surface Condition | GROUND |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 2.2500 INCHES NOMINAL IN |
| Material | COPPER ALLOY 230 OR COPPER ALLOY 240 OR COPPER ALLOY 260 OR COPPER ALLOY 268 OR COPPER ALLOY 342 OR COPPER ALLOY 353 OR COPPER ALLOY 262 OR COPPER ALLOY 270 OR COPPER ALLOY 272 OR COPPER ALLOY 274 OR COPPER ALLOY 280 OR COPPER ALLOY 330 OR COPPER ALLOY 331 OR COPPER ALLOY 332 OR COPPER ALLOY 335 OR COPPER ALLOY 340 OR COPPER ALLOY 344 OR COPPER ALLOY 345 OR COPPER ALLOY 347 OR COPPER ALLOY 348 OR COPPER ALLOY 350 OR COPPER ALLOY 356 OR COPPER ALLOY 360 OR COPPER ALLOY 370 OVERALL |
| 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 |
|---|---|
| 1061-06 | 5/9 Secondary reference Electro Marine Industries Inc |
| 1061-06 | 3/9 Design control — primary reference International Switchboard Corp Div of Equus Power Systems Corp |
NSN 3120-01-203-6563 is a Bearing,washer,thrust, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
6 possible matches (shared part number, not a government interchangeability claim): 5998-01-240-0522, 4940-01-337-2898, 4310-01-448-2313. Verify interchangeability with system specifications before substitution.
Key specifications for 3120-01-203-6563: Corner Shape: SQUARE ALL CORNERS; Overall Thickness: 0.1250 INCHES NOMINAL IN; Style Designator: ROUND; Material Document and Classification: QQ-B-613 FED SPEC ALL MATERIAL RESPONSES OVERALL. 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.