The Seal,plain Encased, cataloged under National Stock Number 5330-00-423-7891, 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 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5330-00-423-7891 |
| Primary Part Number | 193-300-18L |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Vanseal Corp |
| Status | ACTIVE |
| Temp Rating | 200.0 FAHRENHEIT DEGF |
| Seal Width | 0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-Z-325,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE CASE |
| Sealing Element Style | ANGULAR-OPPOSED |
| Housing Bore Diameter | 2.999 INCHES NOMINAL IN |
| Accommodated Shaft Maximum Rated Speed | 2000 FEET PER MINUTE FT |
| Case Style | RECESSED |
| Accommodated Shaft Diameter | 1.938 INCHES NOMINAL IN |
| Surface Treatment | ZINC CASE |
| Material | STEEL OR STEEL CORROSION RESISTING CASE |
| 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 |
|---|---|
| 193-300-18L PRIMARY | Vanseal Corp (USA) |
| Reference | Meaning |
|---|---|
| 2097666-103 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 2097666PC103 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 193-300-18L | 5/9 Secondary reference John Crane, Inc |
NSN 5330-00-423-7891 is a Seal,plain Encased, manufactured by Vanseal Corp, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-423-7891 has 1 manufacturer part number on file: 193-300-18L (Vanseal Corp).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-587-7158. Verify interchangeability with system specifications before substitution.
Key specifications for 193-300-18L: Temp Rating: 200.0 FAHRENHEIT DEGF; Seal Width: 0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-Z-325,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE CASE; Sealing Element Style: ANGULAR-OPPOSED. 10 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.