The Piston,internal Combustion Engin, cataloged under National Stock Number 2815-01-085-5189, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Cnh Industrial America Llc Dba Cnh America. Government technical data includes 26 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-085-5189 |
| Primary Part Number | A65127 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Cnh Industrial America Llc Dba Cnh America |
| Status | ACTIVE |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.0960 INCHES MINIMUM AND 0.0970 INCHES MAXIMUM SECOND RING IN |
| Ring Groove Width | 0.0970 INCHES MINIMUM AND 0.0980 INCHES MAXIMUM FIRST RING IN |
| Ring Groove Width | 0.2505 INCHES MINIMUM AND 0.2515 INCHES MAXIMUM THIRD RING IN |
| Distance Between Pin Bosses | 1.500 INCHES NOMINAL IN |
| Retaining Ring Groove | INCLUDED |
| Surface Finish | FINISHED |
| Supplementary Features | OIL PASSAGE HOLE |
| Material Document and Classification | QQ-A-596 FED SPEC SINGLE MATERIAL RESPONSE |
| Diameter | 4.125 INCHES NOMINAL IN |
| Ring Groove Diameter | 3.678 INCHES MINIMUM AND 3.688 INCHES MAXIMUM THIRD RING IN |
| Ring Groove Diameter | 3.718 INCHES MINIMUM AND 3.728 INCHES MAXIMUM FIRST RING IN |
| Ring Groove Diameter | 3.718 INCHES MINIMUM AND 3.728 INCHES MAXIMUM SECOND RING IN |
| Distance From Pin Hole Center to Extreme Top | 2.892 INCHES MINIMUM AND 2.894 INCHES MAXIMUM IN |
| Pin | NOT INCLUDED |
| Pin Type for Which Designed | LOCKING |
| Oil Groove | INCLUDED |
| Head Style | CAVITY |
| Ring Groove Quantity | 3 |
| Skirt Bottom Cutaway Feature | INCLUDED |
| Finished Size Designation | STANDARD |
| Ring | NOT INCLUDED |
| Pinhole Diameter | 1.5000 INCHES MINIMUM AND 1.5003 INCHES MAXIMUM IN |
| Pin Hole Bushing | NOT INCLUDED |
| Material | ALUMINUM ALLOY F332.0 |
| Skirt Type | FULL SPLIT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 2815-01-085-5189 is a Piston,internal Combustion Engin, manufactured by Cnh Industrial America Llc Dba Cnh America, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-085-5189 has 2 manufacturer part numbers on file: A65127 (Cnh Industrial America Llc Dba Cnh America), 19011 (M & S Cartage Inc).
3 possible matches (shared part number, not a government interchangeability claim): 5305-01-175-0859, 1680-01-623-6471, 6110-01-701-2494. Verify interchangeability with system specifications before substitution.
Key specifications for A65127: Overall Height: 5.258 INCHES MINIMUM AND 5.278 INCHES MAXIMUM IN; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.0960 INCHES MINIMUM AND 0.0970 INCHES MAXIMUM SECOND RING IN; Ring Groove Width: 0.0970 INCHES MINIMUM AND 0.0980 INCHES MAXIMUM FIRST RING IN. 26 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.