The Ring Set,piston, cataloged under National Stock Number 2805-00-927-9278, 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 Trw Inc Trw Intl Trade Government Sales Dept. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-927-9278 |
| Primary Part Number | T7749M-8CYL |
| Item Name | Ring Set,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Trw Inc Trw Intl Trade Government Sales Dept |
| Status | ACTIVE |
| Ring Set Component Parts | COMPRESSION RING 2: SCRAPER RING 2: OIL RING 2 |
| Piston Accommodation Quantity | 2 |
| Standard Bore Diameter | 3.825 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 |
|---|---|
| T7749M-8CYL | Trw Inc Trw Intl Trade Government Sales Dept (USA) |
| Reference | Meaning |
|---|---|
| B8QH6148CA | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| B8QH6148CA | 5/9 Secondary reference Ford Motor Company |
| W5650KX-STD | 3/9 Design control — primary reference Bosch Automotive Service Solutions Inc. |
| W5112KX-STD | 5/9 Secondary reference Spx Corp |
| W5650KX-STD | 5/9 Secondary reference Spx Corp |
NSN 2805-00-927-9278 is a Ring Set,piston, manufactured by Trw Inc Trw Intl Trade Government Sales Dept, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-927-9278 has 1 manufacturer part number on file: T7749M-8CYL (Trw Inc Trw Intl Trade Government Sales Dept).
Key specifications for T7749M-8CYL: Ring Set Component Parts: COMPRESSION RING 2: SCRAPER RING 2: OIL RING 2; Piston Accommodation Quantity: 2; Standard Bore Diameter: 3.825 INCHES IN. 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.