The Ring,piston, cataloged under National Stock Number 3040-00-679-6941, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | U S Army Tank Automotive Command Amsta-Im-Mm (CAGE 19207); Allison Transmission Inc Dba Allison Transmission, Inc (CAGE 73342); Terex Equipment Ltd Div Construction Equipment (CAGE K4285) |
| Parameter | Value |
|---|---|
| NSN | 3040-00-679-6941 |
| Primary Part Number | 6757177 |
| Item Name | Ring,piston |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 10863175 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 6757177 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 6757177 | Terex Equipment Ltd Div Construction Equipment (GBR) |
| Reference | Meaning |
|---|---|
| 6757177 | 5/9 Secondary reference General Motors Corp |
NSN 3040-00-679-6941 is a Ring,piston, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-679-6941 has 3 manufacturer part numbers on file: 10863175 (U S Army Tank Automotive Command Amsta-Im-Mm), 6757177 (Allison Transmission Inc Dba Allison Transmission, Inc), 6757177 (Terex Equipment Ltd Div Construction Equipment).
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.