The Ring Set,piston, cataloged under National Stock Number 2815-00-883-6530, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Rolls-Royce Solutions America Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-883-6530 |
| Primary Part Number | 5195933 |
| Item Name | Ring Set,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Rolls-Royce Solutions America Inc |
| Status | ACTIVE |
| Ring Set Component Parts | EXPANDER RING,5116481,72582,1,SCRAPER RING,5116188,72582,2 |
| Piston Accommodation Quantity | 1 |
| Standard Bore Diameter | 3.875 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 |
|---|---|
| 5195933 PRIMARY | Rolls-Royce Solutions America Inc (USA) |
| Reference | Meaning |
|---|---|
| 5116481 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| MILE11276 | 5/1 Secondary reference U.S. Government activity |
| QPL11276 | 5/1 Secondary reference U.S. Government activity |
| 5195933 | 5/9 Secondary reference General Motors Corp |
| 5116481 | C/1 Advisory reference — outside the item-of-supply concept Rolls-Royce Solutions America Inc |
| 54901 | 5/2 Secondary reference U.S. Government activity |
NSN 2815-00-883-6530 is a Ring Set,piston, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-883-6530 has 1 manufacturer part number on file: 5195933 (Rolls-Royce Solutions America Inc).
4 possible matches (shared part number, not a government interchangeability claim): 6515-01-125-6604, 4730-01-150-3840, 5360-01-711-0605. Verify interchangeability with system specifications before substitution.
Key specifications for 5195933: Ring Set Component Parts: EXPANDER RING,5116481,72582,1,SCRAPER RING,5116188,72582,2; Piston Accommodation Quantity: 1; Standard Bore Diameter: 3.875 INCHES IN. 3 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.