The Ring Set,piston, cataloged under National Stock Number 2805-00-889-6641, 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 Wisconsin Motors, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-889-6641 |
| Primary Part Number | DR48A |
| Item Name | Ring Set,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Wisconsin Motors, Llc |
| Status | ACTIVE |
| Ring Set Component Parts | COMPRESSION RING,4-DC-296,66289,1; COMPRESSION RING,8-DC-297,66289,1; OIL RING,4-DC-327,66289,1; EXPANDER RING,4-DC-328 66289,1; SCRAPER RING,4-DC-300,66289,1 |
| Piston Accommodation Quantity | 4 |
| Standard Bore Diameter | 3.500 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 |
|---|---|
| DR48A PRIMARY | Wisconsin Motors, Llc (USA) |
| Reference | Meaning |
|---|---|
| DR48 | 5/9 Secondary reference Wisconsin Motors, Llc |
NSN 2805-00-889-6641 is a Ring Set,piston, manufactured by Wisconsin Motors, Llc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-889-6641 has 1 manufacturer part number on file: DR48A (Wisconsin Motors, Llc).
Key specifications for DR48A: Ring Set Component Parts: COMPRESSION RING,4-DC-296,66289,1; COMPRESSION RING,8-DC-297,66289,1; OIL RING,4-DC-327,66289,1; EXPANDER RING,4-DC-328 66289,1; SCRAPER RING,4-DC-300,66289,1; Piston Accommodation Quantity: 4; Standard Bore Diameter: 3.500 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.