The Seal Ring,metal, cataloged under National Stock Number 5330-01-320-2133, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Defense Maritime Solutions, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Seal Ring,metal |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Defense Maritime Solutions, Inc. (CAGE 0EYA6) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-320-2133 |
| Primary Part Number | H71407-6-1 |
| Item Name | Seal Ring,metal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Defense Maritime Solutions, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| H71407-6-1 PRIMARY | Defense Maritime Solutions, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 47326 | 5/9 Secondary reference John Crane, Inc |
| US-71407 ITEM 20 | 5/9 Secondary reference Wartsila Lips Inc |
| US-71407 ITEM 20 | 5/9 Secondary reference John Crane, Inc |
| H48630-A03 | 5/9 Secondary reference John Crane, Inc |
| H72346-6-1 | 5/9 Secondary reference John Crane, Inc |
| H-47326 | 5/9 Secondary reference Wartsila Lips Inc |
NSN 5330-01-320-2133 is a Seal Ring,metal, manufactured by Defense Maritime Solutions, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-320-2133 has 1 manufacturer part number on file: H71407-6-1 (Defense Maritime Solutions, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3455-01-366-4770. 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.