The Ring,seal,center, cataloged under National Stock Number 2825-01-221-1550, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Westinghouse Electric Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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,seal,center |
| FSC / FSG | 2825 — Steam Turbines and Components (FSG 28) |
| Manufacturers | Westinghouse Electric Corp (CAGE 79500) |
| Parameter | Value |
|---|---|
| NSN | 2825-01-221-1550 |
| Primary Part Number | 667J655 PIECE 38 |
| Item Name | Ring,seal,center |
| FSC / FSG | 2825 / 28 — Steam Turbines and Components |
| Manufacturer | Westinghouse Electric Corp |
| 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 |
|---|---|
| 667J655 PIECE 38 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 366B433 | D/9 Drawing number reference only U.S. Government activity |
| 366B433 ITEM 304 | 5/2 Secondary reference U.S. Government activity |
| NL-576-1 | 3/9 Design control — primary reference U.S. Government activity |
| 667J655 | D/9 Drawing number reference only Westinghouse Electric Corp |
NSN 2825-01-221-1550 is a Ring,seal,center, manufactured by Westinghouse Electric Corp, classified under FSC 2825, Steam Turbines and Components. Status: active.
NSN 2825-01-221-1550 has 1 manufacturer part number on file: 667J655 PIECE 38 (Westinghouse Electric Corp).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-221-5650, 4820-01-221-5651, 4820-01-221-7496. 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.