The Seal,plain Encased, cataloged under National Stock Number 5330-00-819-5220, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Vanseal Corp. Government technical data includes 8 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-819-5220 |
| Primary Part Number | 850-9503-20L |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Vanseal Corp |
| Status | ACTIVE |
| Seal Width | 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN |
| Sealing Element Style | ANGULAR |
| Housing Bore Diameter | 9.508 INCHES MINIMUM AND 9.512 INCHES MAXIMUM IN |
| Case Style | SQUARE |
| Accommodated Shaft Diameter | 8.500 INCHES NOMINAL IN |
| Surface Treatment | ZINC CASE |
| Material | STEEL CASE |
| Material | RUBBER SYNTHETIC SEALING ELEMENT |
| 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 |
|---|---|
| 850-9503-20L PRIMARY | Vanseal Corp (USA) |
| Reference | Meaning |
|---|---|
| 2097666-79 | 5/9 Secondary reference John Crane, Inc |
| 2146086 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 5330PL0894489 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 2097666-79 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5330-00-819-5220 is a Seal,plain Encased, manufactured by Vanseal Corp, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-819-5220 has 1 manufacturer part number on file: 850-9503-20L (Vanseal Corp).
Key specifications for 850-9503-20L: Seal Width: 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN; Sealing Element Style: ANGULAR; Housing Bore Diameter: 9.508 INCHES MINIMUM AND 9.512 INCHES MAXIMUM IN; Case Style: SQUARE. 8 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.