The Ring Set,piston, cataloged under National Stock Number 2805-01-231-5337, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Brp Us Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2805-01-231-5337 |
| Primary Part Number | 0390509 |
| Item Name | Ring Set,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Brp Us Inc |
| Status | ACTIVE |
| Ring Set Component Parts | COMPRESSION RING,1; OIL RING,1 |
| Piston Accommodation Quantity | 1 |
| 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 |
|---|---|
| 390509 | Brp Us Inc (USA) |
| 0390509 PRIMARY | Brp Us Inc (USA) |
| Reference | Meaning |
|---|---|
| 390509 | 5/9 Secondary reference Outboard Marine Corp Johnson Motors Div |
| 0390509 | 5/9 Secondary reference U.S. Government activity |
| 0390509 | 3/9 Design control — primary reference Evinrude Motors Product Group of Outboard Marine Corp |
| 390509 | 5/9 Secondary reference Evinrude Motors Product Group of Outboard Marine Corp |
| 390509 | 5/9 Secondary reference U.S. Government activity |
| 0390509 | 5/9 Secondary reference Outboard Marine Corp Johnson Motors Div |
NSN 2805-01-231-5337 is a Ring Set,piston, manufactured by Brp Us Inc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-01-231-5337 has 2 manufacturer part numbers on file: 390509 (Brp Us Inc), 0390509 (Brp Us Inc).
Key specifications for 0390509: Ring Set Component Parts: COMPRESSION RING,1; OIL RING,1; Piston Accommodation Quantity: 1. 2 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.