The Piston,internal Combustion Engin, cataloged under National Stock Number 2815-00-552-7705, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-552-7705 |
| Primary Part Number | 9L6054 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.1560 INCHES NOMINAL FIRST RING IN |
| Ring Groove Width | 0.1560 INCHES NOMINAL SECOND RING IN |
| Ring Groove Width | 0.1560 INCHES NOMINAL THIRD RING IN |
| Distance Between Pin Bosses | 4.500 INCHES NOMINAL IN |
| Retaining Ring Groove | NOT INCLUDED |
| Surface Finish | SEMIFINISHED |
| Diameter | 5.344 INCHES NOMINAL IN |
| Ring Groove Diameter | 4.781 INCHES NOMINAL FIRST RING IN |
| Ring Groove Diameter | 4.781 INCHES NOMINAL SECOND RING IN |
| Ring Groove Diameter | 4.844 INCHES NOMINAL THIRD RING IN |
| Distance From Pin Hole Center to Extreme Top | 4.172 INCHES NOMINAL IN |
| Pin | NOT INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | INCLUDED |
| Head Style | HUMP |
| Ring Groove Quantity | 3 |
| Skirt Bottom Cutaway Feature | NOT INCLUDED |
| Ring | INCLUDED |
| Pinhole Diameter | 2.0150 INCHES NOMINAL IN |
| Pin Hole Bushing | NOT INCLUDED |
| Material | ALUMINUM |
| Skirt Type | SOLID |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 9L6054 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 5CA568 | C/1 Advisory reference — outside the item-of-supply concept Oshkosh Corp |
| IPD9L6054 | 5/9 Secondary reference Industrial Parts Depot, Llc Dba Ipd |
NSN 2815-00-552-7705 is a Piston,internal Combustion Engin, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-552-7705 has 1 manufacturer part number on file: 9L6054 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 9L6054: Overall Height: 6.188 INCHES NOMINAL IN; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.1560 INCHES NOMINAL FIRST RING IN; Ring Groove Width: 0.1560 INCHES NOMINAL SECOND RING IN. 23 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.