The Packing,preformed, cataloged under National Stock Number 5330-00-455-0331, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Prestolite Electric Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-455-0331 |
| Primary Part Number | MGB53 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Prestolite Electric Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.725 INCHES NOMINAL IN |
| Hardness Rating | 40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL |
| Cross Section Inside Diameter | 1.125 INCHES NOMINAL IN |
| Flanged Body Outside Diameter | 1.575 INCHES NOMINAL IN |
| Cross Section Outside Diameter | 1.725 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC OVERALL |
| Body Recess Depth | 0.687 INCHES NOMINAL IN |
| 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 |
|---|---|
| MGB53 PRIMARY | Prestolite Electric Inc (USA) |
| Reference | Meaning |
|---|---|
| MGB53 | 5/9 Secondary reference Prestolite Electric Inc |
NSN 5330-00-455-0331 is a Packing,preformed, manufactured by Prestolite Electric Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-455-0331 has 1 manufacturer part number on file: MGB53 (Prestolite Electric Inc).
Key specifications for MGB53: Cross-Sectional Height: 0.725 INCHES NOMINAL IN; Hardness Rating: 40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL; Cross Section Inside Diameter: 1.125 INCHES NOMINAL IN; Flanged Body Outside Diameter: 1.575 INCHES NOMINAL IN. 7 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.