The Gasket, cataloged under National Stock Number 5330-00-021-5819, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Commercial. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-021-5819 |
| Primary Part Number | 66-3478-3 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | The Boeing Company Div Commercial |
| Status | ACTIVE |
| Aperture Diameter | 0.312 INCHES NOMINAL IN |
| Material | RUBBER OVERALL |
| Hole Diameter | 0.218 INCHES MINIMUM AND 0.228 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN |
| 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 |
|---|---|
| 66-3478-3 PRIMARY | The Boeing Company Div Commercial (USA) |
| Reference | Meaning |
|---|---|
| 66-3478-3 | 5/9 Secondary reference U.S. Government activity |
NSN 5330-00-021-5819 is a Gasket, manufactured by The Boeing Company Div Commercial, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-021-5819 has 1 manufacturer part number on file: 66-3478-3 (The Boeing Company Div Commercial).
Key specifications for 66-3478-3: Aperture Diameter: 0.312 INCHES NOMINAL IN; Material: RUBBER OVERALL; Hole Diameter: 0.218 INCHES MINIMUM AND 0.228 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN. 3 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.