The Ring,piston, cataloged under National Stock Number 2805-00-528-5799, 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 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-528-5799 |
| Item Name | Ring,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Status | ACTIVE |
| Bore Diameter Oversize | 0.040 INCHES IN |
| Material Document and Classification | AMS 7310 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.1520 INCHES MINIMUM AND 0.1620 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Surface Treatment | CHROMIUM OUTSIDE PERIPHERY |
| Standard Bore Diameter | 3.250 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 |
|---|---|
| MS13933-6 | 2/2 Government specification standardization U.S. Government activity |
NSN 2805-00-528-5799 is a Ring,piston, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
Key specifications for 2805-00-528-5799: Bore Diameter Oversize: 0.040 INCHES IN; Overall Width: 0.0930 INCHES MINIMUM AND 0.0940 INCHES MAXIMUM IN; Material Document and Classification: AMS 7310 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE. 9 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.