The Ring Set,piston, cataloged under National Stock Number 2815-01-159-5669, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Ring Set,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 | 2815-01-159-5669 |
| Primary Part Number | 1W5105 |
| Item Name | Ring Set,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
NSN 2815-01-159-5669 is a Ring Set,piston, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-159-5669 has 2 manufacturer part numbers on file: 1W5105 (Caterpillar Inc Div Caterpillar Defense), B6248-80 (Kaydon Ring & Seal Inc Dba Skf Precision Technologies).
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.