The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-528-6416, 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 Brinkley Technology Group Llc Dba Hercules Manufacturing. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-528-6416 |
| Primary Part Number | 37017B |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.0950 INCHES MINIMUM AND 0.0960 INCHES MAXIMUM FIRST RING IN |
| Ring Groove Width | 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM SECOND RING IN |
| Distance Between Pin Bosses | 0.906 INCHES NOMINAL IN |
| Retaining Ring Groove | NOT INCLUDED |
| Surface Finish | FINISHED |
| Oil Passage Type | HOLE LOCATION NOT OTHERWISE SPECIFIED |
| Diameter | 2.875 INCHES NOMINAL IN |
| Ring Groove Diameter | 2.5335 INCHES MINIMUM AND 2.5435 INCHES MAXIMUM SECOND RING IN |
| Ring Groove Diameter | 2.5735 INCHES MINIMUM AND 2.5835 INCHES MAXIMUM FIRST RING IN |
| Distance From Pin Hole Center to Extreme Top | 1.370 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN |
| Pin | NOT INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | NOT INCLUDED |
| Head Style | FLAT |
| Ring Groove Quantity | 3 |
| Skirt Bottom Cutaway Feature | NOT INCLUDED |
| Finished Size Designation | STANDARD |
| Ring | NOT INCLUDED |
| Pinhole Diameter | 0.6870 INCHES MINIMUM AND 0.6875 INCHES MAXIMUM IN |
| Pin Hole Bushing | INCLUDED |
| Material | IRON CAST |
| 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 |
|---|---|
| 37017B PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 37017B | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 2805-00-528-6416 is a Piston,internal Combustion Engin, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-528-6416 has 1 manufacturer part number on file: 37017B (Brinkley Technology Group Llc Dba Hercules Manufacturing).
Key specifications for 37017B: Overall Height: 2.562 INCHES NOMINAL IN; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.0950 INCHES MINIMUM AND 0.0960 INCHES MAXIMUM FIRST RING IN; Ring Groove Width: 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM 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.