The Ring Set,piston, cataloged under National Stock Number 2815-01-042-9986, 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.. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-042-9986 |
| Primary Part Number | 4955975 |
| Item Name | Ring Set,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Cummins Inc. |
| 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 |
|---|---|
| 9KK582 | Oshkosh Defense Llc (USA) |
| AR10680 | Cummins Ltd (GBR) |
| 4955975 PRIMARY | Cummins Inc. (USA) |
| 4955975 | Mcbee Supply Corporation Dba Interstate Mcbee (USA) |
| Reference | Meaning |
|---|---|
| M-4089500 | 5/9 Secondary reference Mcbee Supply Corporation Dba Interstate Mcbee |
| 9KK582 | 5/9 Secondary reference Oshkosh Corp |
| 3803472 | 5/9 Secondary reference Cummins Inc. |
| AR10680 | 5/9 Secondary reference Cummins Inc. |
| 2AF536 | 5/9 Secondary reference Oshkosh Corp |
| 3803472 | 5/9 Secondary reference Mcbee Supply Corporation Dba Interstate Mcbee |
NSN 2815-01-042-9986 is a Ring Set,piston, manufactured by Cummins Inc., classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-042-9986 has 4 manufacturer part numbers on file: 9KK582 (Oshkosh Defense Llc), AR10680 (Cummins Ltd), 4955975 (Cummins Inc.), 4955975 (Mcbee Supply Corporation Dba Interstate Mcbee).
Key specifications for 4955975: Special Features: CONSISTS OF 15434 205290 COMPRESSION RING 1,15434 205700 COMPRESSION RING 1,15434 205710 OIL PISTON RING 1,AND 15434 3379028 LIN BULLETIN 1. 0 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.