The Ring Set,piston, cataloged under National Stock Number 2815-01-040-1068, is classified within Federal Supply Class 2815 (Diesel Engines 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 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2815-01-040-1068 |
| Primary Part Number | 292121AS |
| Item Name | Ring Set,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| Ring Set Component Parts | COMPRESSION RING,2992110,28265,1; COMPRESSION RING,292111,28265,1; OIL RING,292112,28265,2; SPACER RING,292113,28265,1 |
| Piston Accommodation Quantity | 1 |
| Standard Bore Diameter | 4.000 INCHES IN |
| 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 |
|---|---|
| 292121AS PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 292121AS | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 2815-01-040-1068 is a Ring Set,piston, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-040-1068 has 1 manufacturer part number on file: 292121AS (Brinkley Technology Group Llc Dba Hercules Manufacturing).
Key specifications for 292121AS: Ring Set Component Parts: COMPRESSION RING,2992110,28265,1; COMPRESSION RING,292111,28265,1; OIL RING,292112,28265,2; SPACER RING,292113,28265,1; Piston Accommodation Quantity: 1; Standard Bore Diameter: 4.000 INCHES IN; End Item Identification: DIESEL ENGINE,WHITE ENGINE INC,MODEL D3400. 3 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.