The Sealing Ring, cataloged under National Stock Number 5330-00-452-7128, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Triumph Aerospace Operations Uk, Ltd. Div Staverton Site. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Sealing Ring |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Triumph Aerospace Operations Uk, Ltd. Div Staverton Site (CAGE U7388); Transaero, Inc. (CAGE 27541) |
| Parameter | Value |
|---|---|
| NSN | 5330-00-452-7128 |
| Primary Part Number | BM471-2A |
| Item Name | Sealing Ring |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Triumph Aerospace Operations Uk, Ltd. Div Staverton Site |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| BM471-2A | Triumph Aerospace Operations Uk, Ltd. Div Staverton Site (GBR) |
| BM471-2A | Transaero, Inc. (USA) |
| Reference | Meaning |
|---|---|
| BM471-2A | 3/2 Design control — primary reference U.S. Government activity |
| BM471-2A | C/1 Advisory reference — outside the item-of-supply concept Ge Aviation Systems Llc Dba Ge Aviation |
| BM471-2A | 5/9 Secondary reference Safran Landing Systems Uk Ltd Div Safran Landing Systems Uk |
NSN 5330-00-452-7128 is a Sealing Ring, manufactured by Triumph Aerospace Operations Uk, Ltd. Div Staverton Site, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-452-7128 has 2 manufacturer part numbers on file: BM471-2A (Triumph Aerospace Operations Uk, Ltd. Div Staverton Site), BM471-2A (Transaero, Inc.).
Possible hazard — SDS may be required (DLA HMIC P). 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.