The Ring,piston, cataloged under National Stock Number 2815-00-779-6393, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-779-6393 |
| Primary Part Number | 115990 |
| Item Name | Ring,piston |
| FSC / FSG | 2815 / 28 — No Item Name Available |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Standard Bore Diameter | 5.125 INCHES IN |
| Oil Passage Type and Quantity | 17 SLOT HORIZONTALLY THROUGH RING |
| Ring Style | CONCENTRIC |
| Oil Passage Type and Quantity | 1 GROOVE OUTSIDE PERIPHERY |
| Material | IRON OVERALL |
| FSC Application Data | DIESEL ENGINE |
| Surface Treatment | CHROMIUM OVERALL |
| Radial Wall Thickness | 0.1350 INCHES MINIMUM AND 0.1450 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | CONVEX FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL |
| Joint Style | VERTICAL JOINT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 115990 PRIMARY | Cummins Inc. (USA) |
NSN 2815-00-779-6393 is a Ring,piston, manufactured by Cummins Inc., classified under FSC 2815 (No Item Name Available). Status: active.
NSN 2815-00-779-6393 has 1 cross-referenced part number: 115990 (Cummins Inc.).
There is 1 known substitute for 2815-00-779-6393: 3130-00-402-5111. Verify interchangeability with system specifications before substitution.
Key specifications for 115990: Standard Bore Diameter: 5.125 INCHES IN; Oil Passage Type and Quantity: 17 SLOT HORIZONTALLY THROUGH RING; Ring Style: CONCENTRIC; Oil Passage Type and Quantity: 1 GROOVE OUTSIDE PERIPHERY. 11 total characteristics are documented in the Federal Logistics Information System.