The Ring,piston, cataloged under National Stock Number 2815-01-079-3290, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Cummins Inc.. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 2815-01-079-3290 |
| Primary Part Number | 180810 |
| Item Name | Ring,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Cross-Sectional Shape Style | MULTI-PIECE, STRAIGHT FACE, W/EXPANDER |
| Joint Style | VERTICAL JOINT |
| Ring Style | CONCENTRIC |
| Surface Treatment | CHROMIUM OVERALL |
| Standard Bore Diameter | 3.625 INCHES IN |
| 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 |
|---|---|
| 180810 PRIMARY | Cummins Inc. (USA) |
| Reference | Meaning |
|---|---|
| 032397T | C/1 Advisory reference — outside the item-of-supply concept Kovatch Corp. |
NSN 2815-01-079-3290 is a Ring,piston, manufactured by Cummins Inc., classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-079-3290 has 1 manufacturer part number on file: 180810 (Cummins Inc.).
Key specifications for 180810: Overall Width: 0.1715 INCHES MINIMUM AND 0.1815 INCHES MAXIMUM IN; Cross-Sectional Shape Style: MULTI-PIECE, STRAIGHT FACE, W/EXPANDER; Joint Style: VERTICAL JOINT; Ring Style: CONCENTRIC. 5 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.