The Ring,piston, cataloged under National Stock Number 2815-00-868-6743, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Komatsu America Corp.. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Ring,piston |
| FSC / FSG | 2815 — Diesel Engines and Components (FSG 28) |
| Manufacturers | Komatsu America Corp. (CAGE 0SAT8) |
| Parameter | Value |
|---|---|
| NSN | 2815-00-868-6743 |
| Primary Part Number | 313156R1 |
| Item Name | Ring,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Komatsu America Corp. |
| Status | ACTIVE |
| 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 |
|---|---|
| 313156R1 | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 313156R1 | 3/9 Design control — primary reference Komatsu American Intl Co |
| 125-3791 | 5/9 Secondary reference U.S. Government activity |
| 313156R1 | 5/9 Secondary reference U.S. Government activity |
| 143032 | 5/9 Secondary reference Echlin Inc |
| 313156R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
NSN 2815-00-868-6743 is a Ring,piston, manufactured by Komatsu America Corp., classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-868-6743 has 1 manufacturer part number on file: 313156R1 (Komatsu America Corp.).
2 possible matches (shared part number, not a government interchangeability claim): 6130-01-607-3382, 5998-01-679-7946. Verify interchangeability with system specifications before substitution.
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.