The Ring,piston, cataloged under National Stock Number 2810-01-285-2638, 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 Rolls-Royce Corporation. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent (CAGE 71687); Rolls-Royce Corporation (CAGE 63005) |
| Parameter | Value |
|---|---|
| NSN | 2810-01-285-2638 |
| Primary Part Number | 6889096 |
| Item Name | Ring,piston |
| FSC / FSG | 2810 / 28 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components |
| Manufacturer | Rolls-Royce Corporation |
| 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 |
|---|---|
| AAD12793 | Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent (USA) |
| 6889096 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| E6889096 | C/1 Advisory reference — outside the item-of-supply concept Extex Engineered Products Inc Dba Timken Aerospace Services |
| E6889096 | 5/9 Secondary reference Extex, Ltd. |
NSN 2810-01-285-2638 is a Ring,piston, manufactured by Rolls-Royce Corporation, classified under FSC 2810, Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components. Status: active.
NSN 2810-01-285-2638 has 2 manufacturer part numbers on file: AAD12793 (Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent), 6889096 (Rolls-Royce Corporation).
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.