The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-659-6435, 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 29 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2805-00-659-6435 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Status | ACTIVE |
| FSC Application Data | ENGINE GASOLINE,NONAIRCRAFT |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM FOURTH RING IN |
| Ring Groove Width | 0.0955 INCHES MINIMUM AND 0.0965 INCHES MAXIMUM SECOND RING IN |
| Ring Groove Width | 0.0965 INCHES MINIMUM AND 0.0975 INCHES MAXIMUM FIRST RING IN |
| Ring Groove Width | 0.2505 INCHES MINIMUM AND 0.2515 INCHES MAXIMUM THIRD RING IN |
| Distance Between Pin Bosses | 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN |
| Retaining Ring Groove | INCLUDED |
| Surface Finish | FINISHED |
| Ring Groove Position and Quantity | NUMBER 1,NUMBER 2,NUMBER @3,NUMBER 4,AND NUMBER5 PISTON ALL RINGS |
| Skirt Slot Style | GROOVE CONVEX SLOT |
| Supplementary Features | OIL PASSAGE HOLE |
| Diameter | 4.875 INCHES NOMINAL IN |
| Ring Groove Diameter | 4.358 INCHES MINIMUM AND 4.368 INCHES MAXIMUM FIRST RING IN |
| Ring Groove Diameter | 4.358 INCHES MINIMUM AND 4.368 INCHES MAXIMUM SECOND RING IN |
| Ring Groove Diameter | 4.425 INCHES MINIMUM AND 4.435 INCHES MAXIMUM FOURTH RING IN |
| Ring Groove Diameter | 4.425 INCHES MINIMUM AND 4.435 INCHES MAXIMUM THIRD RING IN |
| Distance From Pin Hole Center to Extreme Top | 3.620 INCHES MINIMUM AND 3.630 INCHES MAXIMUM IN |
| Pin | INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | NOT INCLUDED |
| Head Style | FLAT |
| Ring Groove Quantity | 5 |
| Oversize | 0.030 INCHES NOMINAL IN |
| Skirt Bottom Cutaway Feature | NOT INCLUDED |
| Finished Size Designation | OVERSIZE |
| Ring | INCLUDED |
| Surface Treatment | TIN |
| Pinhole Diameter | 1.4998 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN |
| 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 |
|---|---|
| R600A4273A030 | 3/9 Design control — primary reference Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc |
NSN 2805-00-659-6435 is a Piston,internal Combustion Engin, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
Key specifications for 2805-00-659-6435: Overall Height: 5.935 INCHES MINIMUM AND 5.940 INCHES MAXIMUM IN; FSC Application Data: ENGINE GASOLINE,NONAIRCRAFT; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM FOURTH RING IN. 29 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.