The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-375-7639, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; 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 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-375-7639 |
| Primary Part Number | A146697 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Cnh Industrial America Llc Dba Cnh America |
| Status | ACTIVE |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.2750 INCHES NOMINAL AND 0.0960 INCHES NOMINAL AND 0.2510 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Distance Between Pin Bosses | 1.920 INCHES NOMINAL IN |
| Retaining Ring Groove | NOT INCLUDED |
| Surface Finish | SEMIFINISHED |
| Diameter | 4.570 INCHES NOMINAL IN |
| Ring Groove Diameter | 4.133 INCHES NOMINAL FIRST RING IN |
| Ring Groove Diameter | 4.133 INCHES NOMINAL SECOND RING IN |
| Ring Groove Diameter | 4.146 INCHES NOMINAL THIRD RING IN |
| Distance From Pin Hole Center to Extreme Top | 3.382 INCHES NOMINAL IN |
| Pin | NOT INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | INCLUDED |
| Head Style | CAVITY |
| Ring Groove Quantity | 3 |
| Skirt Bottom Cutaway Feature | NOT INCLUDED |
| Ring | NOT INCLUDED |
| Surface Treatment | TIN |
| Pinhole Diameter | 1.8000 INCHES NOMINAL IN |
| Pin Hole Bushing | NOT INCLUDED |
| Material | ALUMINUM ALLOY |
| Skirt Type | SOLID |
| Groove Taper Angle | 15 DEGREES,FOR NUMBER 1 GROOVE |
| 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 |
|---|---|
| A146697 PRIMARY | Cnh Industrial America Llc Dba Cnh America (USA) |
| Reference | Meaning |
|---|---|
| A-1553NP | 5/9 Secondary reference U.S. Government activity |
| A61848 | 5/9 Secondary reference Cnh Industrial America Llc Dba Cnh America |
| A64110 | 5/9 Secondary reference Cnh Industrial America Llc Dba Cnh America |
NSN 2805-00-375-7639 is a Piston,internal Combustion Engin, manufactured by Cnh Industrial America Llc Dba Cnh America, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-375-7639 has 1 manufacturer part number on file: A146697 (Cnh Industrial America Llc Dba Cnh America).
Key specifications for A146697: Overall Height: 5.257 INCHES NOMINAL IN; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.2750 INCHES NOMINAL AND 0.0960 INCHES NOMINAL AND 0.2510 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Distance Between Pin Bosses: 1.920 INCHES NOMINAL 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.