The Ring Set,piston, cataloged under National Stock Number 2805-00-708-9409, 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 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-708-9409 |
| Primary Part Number | DR29 |
| Item Name | Ring Set,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Wisconsin Motors, Llc |
| Status | ACTIVE |
| Bore Diameter Oversize | 0.040 INCHES IN |
| Ring Set Component Parts | OIL RING 1;COMPRESSION 2;SCRAPER RING 1 |
| Piston Accommodation Quantity | 1 |
| Standard Bore Diameter | 2.625 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 |
|---|---|
| DR29 PRIMARY | Wisconsin Motors, Llc (USA) |
| Reference | Meaning |
|---|---|
| DR29STD | 5/9 Secondary reference Wisconsin Motors, Llc |
| MDR29 | 5/2 Secondary reference U.S. Government activity |
NSN 2805-00-708-9409 is a Ring Set,piston, manufactured by Wisconsin Motors, Llc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-708-9409 has 1 manufacturer part number on file: DR29 (Wisconsin Motors, Llc).
Key specifications for DR29: Bore Diameter Oversize: 0.040 INCHES IN; Ring Set Component Parts: OIL RING 1;COMPRESSION 2;SCRAPER RING 1; Piston Accommodation Quantity: 1; Standard Bore Diameter: 2.625 INCHES IN. 4 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.