The Seal Ring,metal, cataloged under National Stock Number 5330-01-379-0718, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5330-01-379-0718 |
| Primary Part Number | 0561C0042 |
| Item Name | Seal Ring,metal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Outside Diameter | 3.250 INCHES MINIMUM AND 3.350 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5330-01-379-0718 is a Seal Ring,metal, manufactured by Lake Shore Systems, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-379-0718 has 2 manufacturer part numbers on file: 0561C0042 (Lake Shore Systems, Inc.), 0561C0042 (Lake Shore Systems, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-380-2117. Verify interchangeability with system specifications before substitution.
Key specifications for 0561C0042: Overall Width: 0.1850 INCHES MINIMUM AND 0.2300 INCHES MAXIMUM IN; Outside Diameter: 3.250 INCHES MINIMUM AND 3.350 INCHES MAXIMUM IN; Special Features: INCLUDES SYNTHETIC NYLON FIBER FILAMENT; Material: STEEL OVERALL. 2 specifications are documented in the U.S. Government catalog.
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.