The Seal,plain, cataloged under National Stock Number 5330-00-078-0307, 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 6 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5330-00-078-0307 |
| Primary Part Number | 756-981-20 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Vanseal Corp |
| Status | ACTIVE |
| Seal Width | 0.625 INCHES NOMINAL IN |
| Housing Bore Diameter | 9.808 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | SINGLE LIP |
| Accommodated Shaft Diameter | 8.500 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING INTERNALLY MOLDED-IN REINFORCEMENT |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 756-981-20 PRIMARY | Vanseal Corp (USA) |
| Reference | Meaning |
|---|---|
| 756-981-20 | 5/9 Secondary reference John Crane, Inc |
| 756-981-14 | 5/9 Secondary reference John Crane, Inc |
| L7110 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| L7110 | 5/9 Secondary reference Pettibone Llc |
NSN 5330-00-078-0307 is a Seal,plain, manufactured by Vanseal Corp, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-078-0307 has 1 manufacturer part number on file: 756-981-20 (Vanseal Corp).
Key specifications for 756-981-20: Seal Width: 0.625 INCHES NOMINAL IN; Housing Bore Diameter: 9.808 INCHES NOMINAL IN; Cross-Sectional Shape Style: SINGLE LIP; Accommodated Shaft Diameter: 8.500 INCHES NOMINAL IN. 6 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.