The Ring,piston, cataloged under National Stock Number 2810-01-290-2642, is classified within Federal Supply Class 2810 (Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Brown Boveri and Cie Ag. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Ring,piston |
| FSC / FSG | 2810 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components (FSG 28) |
| Manufacturers | Brown Boveri and Cie Ag (CAGE S3771) |
| Parameter | Value |
|---|---|
| NSN | 2810-01-290-2642 |
| Primary Part Number | VTR251-2-3712 |
| Item Name | Ring,piston |
| FSC / FSG | 2810 / 28 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components |
| Manufacturer | Brown Boveri and Cie Ag |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| VTR251-2-3712 PRIMARY | Brown Boveri and Cie Ag (CHE) |
| Reference | Meaning |
|---|---|
| 34191 | 5/2 Secondary reference U.S. Government activity |
| 3712 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 2810-01-290-2642 is a Ring,piston, manufactured by Brown Boveri and Cie Ag, classified under FSC 2810, Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components. Status: active.
NSN 2810-01-290-2642 has 1 manufacturer part number on file: VTR251-2-3712 (Brown Boveri and Cie Ag).
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.