The Ring,piston, cataloged under National Stock Number 3040-00-972-2803, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Rockford Powertrain Inc Div Powertrain Rockford, Inc.. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Ring,piston |
| FSC / FSG | 3040 — Miscellaneous Power Transmission Equipment (FSG 30) |
| Manufacturers | Rockford Powertrain Inc Div Powertrain Rockford, Inc. (CAGE 77873) |
| Parameter | Value |
|---|---|
| NSN | 3040-00-972-2803 |
| Primary Part Number | A30351100-0 |
| Item Name | Ring,piston |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rockford Powertrain Inc Div Powertrain Rockford, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| A303511 | Rockford Powertrain Inc Div Powertrain Rockford, Inc. (USA) |
| 2-05926 | Rockford Powertrain Inc Div Powertrain Rockford, Inc. (USA) |
| A30351100-0 PRIMARY | Rockford Powertrain Inc Div Powertrain Rockford, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2-763-474-05926 | 5/9 Secondary reference Rockford Powertrain Inc Div Powertrain Rockford, Inc. |
NSN 3040-00-972-2803 is a Ring,piston, manufactured by Rockford Powertrain Inc Div Powertrain Rockford, Inc., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-972-2803 has 3 manufacturer part numbers on file: A303511 (Rockford Powertrain Inc Div Powertrain Rockford, Inc.), 2-05926 (Rockford Powertrain Inc Div Powertrain Rockford, Inc.), A30351100-0 (Rockford Powertrain Inc Div Powertrain Rockford, Inc.).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 3040-00-972-2803 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.