The Seal,plain, cataloged under National Stock Number 5330-00-003-6658, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-003-6658 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Temp Rating | -423.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF |
| Seal Width | 0.141 INCHES NOMINAL IN |
| Housing Bore Diameter | 7.242 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE SPRING |
| Material Document and Classification | ASTM D1457 TY 4 ASSN STD SINGLE MATERIAL RESPONSE SEALING ELEMENT |
| Cross-Sectional Shape Style | C-SECTION W/ FLAT SPRING |
| Accommodated Shaft Diameter | 7.000 INCHES NOMINAL IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEALING ELEMENT |
| Material | STEEL COMP 631 SPRING |
| Reference Number Differentiating Characteristics | PACKAGING SHALL BE IN ACCORDANCE WITH MIL-P-23199 REV A AND INTERIM CHANGE NUMBER 1 LEVEL B |
| Construction | SOLID |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AR10105-262A1H | 5/9 Secondary reference Marison Industries Inc Barco Div |
| AR10105-262A1H | 3/1 Design control — primary reference Saint-Gobain Performance Plastics Corporation Div Omniseal Solutions |
NSN 5330-00-003-6658 is a Seal,plain, classified under FSC 5330, Packing and Gasket Materials. Status: active.
Key specifications for 5330-00-003-6658: Temp Rating: -423.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF; Seal Width: 0.141 INCHES NOMINAL IN; Housing Bore Diameter: 7.242 INCHES NOMINAL IN; Material Document and Classification: AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE SPRING. 11 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.