The Seal, cataloged under National Stock Number 5330-00-910-3902, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Seal |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Defense Maritime Solutions, Inc. (CAGE 0EYA6); John Crane, Inc (CAGE 71724) |
| Parameter | Value |
|---|---|
| NSN | 5330-00-910-3902 |
| Primary Part Number | 331-500-20M0L |
| Item Name | Seal |
| 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) |
| Part Number | Manufacturer |
|---|---|
| 331-500-20M0L PRIMARY | Defense Maritime Solutions, Inc. (USA) |
| 331-500-20M0L | John Crane, Inc (USA) |
| Reference | Meaning |
|---|---|
| 331-500-20MOL | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 331-500-0M0L | 5/9 Secondary reference U.S. Government activity |
| 331D500 | 5/2 Secondary reference U.S. Government activity |
| 331-500-20M0L | 5/9 Secondary reference Wartsila Lips Inc |
| 331-500-20M0L | 5/9 Secondary reference U.S. Government activity |
NSN 5330-00-910-3902 is a Seal, manufactured by Defense Maritime Solutions, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-910-3902 has 2 manufacturer part numbers on file: 331-500-20M0L (Defense Maritime Solutions, Inc.), 331-500-20M0L (John Crane, 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.