The Ring,piston, cataloged under National Stock Number 2815-00-339-4664, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-339-4664 |
| Item Name | Ring,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Status | ACTIVE |
| Cross-Sectional Shape Style | CONCAVE FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL |
| Joint Style | VERTICAL JOINT |
| Oil Passage Type and Quantity | 1 GROOVE OUTSIDE PERIPHERY |
| Oil Passage Type and Quantity | 1 SLOT HORIZONTALLY THROUGH RING |
| Radial Wall Thickness | 0.1370 INCHES MINIMUM AND 0.1470 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| 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 |
|---|---|
| ZD129A301 | 5/9 Secondary reference Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc |
| ZD129A3290 | 3/9 Design control — primary reference Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc |
| ZD129A313 | 5/9 Secondary reference Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc |
NSN 2815-00-339-4664 is a Ring,piston, classified under FSC 2815, Diesel Engines and Components. Status: active.
Key specifications for 2815-00-339-4664: Overall Width: 0.2485 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM IN; Cross-Sectional Shape Style: CONCAVE FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL; Joint Style: VERTICAL JOINT; Oil Passage Type and Quantity: 1 GROOVE OUTSIDE PERIPHERY. 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.