The Stone,commutator Surfacing, cataloged under National Stock Number 5345-00-174-0447, is classified within Federal Supply Class 5345 (Disks and Stones, Abrasive) of the Hardware and Abrasives group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5345-00-174-0447 |
| Item Name | Stone,commutator Surfacing |
| FSC / FSG | 5345 / 53 — Disks and Stones, Abrasive |
| Status | ACTIVE |
| Overall Thickness | 0.500 INCHES NOMINAL IN |
| Material | ALUMINUM OXIDE ABRASIVE |
| Stone Style | ELECTRICAL CONTACT BRUSH SEATER |
| 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 |
|---|---|
| A220JE | 5/9 Secondary reference Michigan Abrasive Co |
| ANSI B74.12 | 3/1 Design control — primary reference U.S. Government activity |
| MIL-S-17243 | 5/9 Secondary reference U.S. Government activity |
| MIL-S-17243 CLM | 5/9 Secondary reference U.S. Government activity |
NSN 5345-00-174-0447 is a Stone,commutator Surfacing, classified under FSC 5345, Disks and Stones, Abrasive. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5345-00-584-5893. Verify interchangeability with system specifications before substitution.
Key specifications for 5345-00-174-0447: Overall Width: 0.250 INCHES NOMINAL IN; Overall Thickness: 0.500 INCHES NOMINAL IN; Overall Length: 6.000 INCHES NOMINAL IN; Material: ALUMINUM OXIDE ABRASIVE. 3 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.