The Seal,plain, cataloged under National Stock Number 5330-01-522-0246, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Portland Valve Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-522-0246 |
| Primary Part Number | 506-3005 PC. NO. 33 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Portland Valve Llc |
| Status | ACTIVE |
| Seal Width | 0.187 INCHES NOMINAL IN |
| Housing Bore Diameter | 1.375 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | C-SECTION W/ HELICAL SPRING |
| Color | GREEN |
| Accommodated Shaft Diameter | 1.000 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING SPRING |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE OUTER RING |
| Construction | TWO-PIECE |
| 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 |
|---|---|
| 506-3005 PC. NO. 33 | Portland Valve Llc (USA) |
| Reference | Meaning |
|---|---|
| 426MB-321-SP45 | 5/9 Secondary reference Bal Seal Engineering Inc. |
| 426MB-(1.000)-SP45 | 3/9 Design control — primary reference Bal Seal Engineering Inc. |
NSN 5330-01-522-0246 is a Seal,plain, manufactured by Portland Valve Llc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-522-0246 has 1 manufacturer part number on file: 506-3005 PC. NO. 33 (Portland Valve Llc).
Key specifications for 506-3005 PC. NO. 33: Seal Width: 0.187 INCHES NOMINAL IN; Housing Bore Diameter: 1.375 INCHES NOMINAL IN; Cross-Sectional Shape Style: C-SECTION W/ HELICAL SPRING; Color: GREEN. 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.