The Gasket, cataloged under National Stock Number 5330-01-123-0499, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Mermaid Marine Engines Ltd. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | Gasket |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Mermaid Marine Engines Ltd (CAGE U2985) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-123-0499 |
| Primary Part Number | 50031 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Mermaid Marine Engines Ltd |
| 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 |
|---|---|
| 50031 | Mermaid Marine Engines Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 50031 | 5/9 Secondary reference Grove R B Inc |
| 50031 | 5/9 Secondary reference Classic Restoration and Sales |
| 50031 | 3/9 Design control — primary reference Sabre Engines Ltd |
NSN 5330-01-123-0499 is a Gasket, manufactured by Mermaid Marine Engines Ltd, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-123-0499 has 1 manufacturer part number on file: 50031 (Mermaid Marine Engines Ltd).
3 possible matches (shared part number, not a government interchangeability claim): 5340-01-163-9455, 5355-01-181-0561, 4820-01-240-2724. Verify interchangeability with system specifications before substitution.
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.