The Ring,piston, cataloged under National Stock Number 2815-01-207-5982, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Kaydon Ring & Seal Inc Dba Skf Precision Technologies. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Ring,piston |
| FSC / FSG | 2815 — Diesel Engines and Components (FSG 28) |
| Manufacturers | Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Kaydon Ring & Seal Inc Dba Skf Precision Technologies (CAGE 75370) |
| Parameter | Value |
|---|---|
| NSN | 2815-01-207-5982 |
| Primary Part Number | C2487 |
| Item Name | Ring,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Kaydon Ring & Seal Inc Dba Skf Precision Technologies |
| 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 |
|---|---|
| 8N7963 ITEM 4 | Caterpillar Inc Div Caterpillar Defense (USA) |
| C2487 PRIMARY | Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA) |
| 7W2221 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 8N7963 | D/9 Drawing number reference only Caterpillar Inc Div Caterpillar Defense |
| 8N1442 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
| C2487-60 | 5/9 Secondary reference Kaydon Ring & Seal Inc Dba Skf Precision Technologies |
NSN 2815-01-207-5982 is a Ring,piston, manufactured by Kaydon Ring & Seal Inc Dba Skf Precision Technologies, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-207-5982 has 3 manufacturer part numbers on file: 8N7963 ITEM 4 (Caterpillar Inc Div Caterpillar Defense), C2487 (Kaydon Ring & Seal Inc Dba Skf Precision Technologies), 7W2221 (Caterpillar Inc Div Caterpillar Defense).
1 possible match (shared part number, not a government interchangeability claim): 5910-01-484-5297. 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.