The Ring,piston, cataloged under National Stock Number 2810-01-289-4953, 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 Kaydon Ring & Seal Inc Dba Skf Precision Technologies. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Ring,piston |
| FSC / FSG | 2810 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components (FSG 28) |
| Manufacturers | Rolls-Royce Marine North America Inc. (CAGE 38ZC7); Kaydon Ring & Seal Inc Dba Skf Precision Technologies (CAGE 75370) |
| Parameter | Value |
|---|---|
| NSN | 2810-01-289-4953 |
| Primary Part Number | 90125-00 |
| Item Name | Ring,piston |
| FSC / FSG | 2810 / 28 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components |
| Manufacturer | Kaydon Ring & Seal Inc Dba Skf Precision Technologies |
| 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 |
|---|---|
| 6886840 | Rolls-Royce Marine North America Inc. (USA) |
| 90125-00 PRIMARY | Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA) |
| Reference | Meaning |
|---|---|
| 6886840 | 5/9 Secondary reference Rolls-Royce Corporation |
| 90125 | 5/9 Secondary reference Kaydon Ring & Seal Inc Dba Skf Precision Technologies |
NSN 2810-01-289-4953 is a Ring,piston, manufactured by Kaydon Ring & Seal Inc Dba Skf Precision Technologies, classified under FSC 2810, Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components. Status: active.
NSN 2810-01-289-4953 has 2 manufacturer part numbers on file: 6886840 (Rolls-Royce Marine North America Inc.), 90125-00 (Kaydon Ring & Seal Inc Dba Skf Precision Technologies).
5 possible matches (shared part number, not a government interchangeability claim): 4920-01-300-2027, 5330-01-357-6875, 6515-01-563-5395. Verify interchangeability with system specifications before substitution.
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.