The Ring,piston, cataloged under National Stock Number 2805-00-555-6090, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-555-6090 |
| Item Name | Ring,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Status | ACTIVE |
| FSC Application Data | ENGINE GASOLINE |
| Bore Diameter Oversize | 0.020 INCHES IN |
| Cross-Sectional Shape Style | STRAIGHT FACE, BOTTOM RELIEF |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.1400 INCHES MINIMUM AND 0.1500 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 3.000 INCHES IN |
| Material | IRON OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| DC163-1S20 | 5/1 Secondary reference Wisconsin Motors, Llc |
| MS39349-2 | 2/2 Government specification standardization U.S. Government activity |
| MS13932-2 | 5/9 Secondary reference U.S. Government activity |
| MIL-E-11275 | 4/1 Identification reference U.S. Government activity |
NSN 2805-00-555-6090 is a Ring,piston, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
Key specifications for 2805-00-555-6090: FSC Application Data: ENGINE GASOLINE; Bore Diameter Oversize: 0.020 INCHES IN; Overall Width: 0.0930 INCHES MINIMUM AND 0.0940 INCHES MAXIMUM IN; Cross-Sectional Shape Style: STRAIGHT FACE, BOTTOM RELIEF. 8 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.