The Corona Ball, cataloged under National Stock Number 5920-01-062-8731, is classified within Federal Supply Class 5920 (Fuses, Arrestors, Absorbers, and Protectors) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-062-8731 |
| Primary Part Number | 2105981-2 |
| Item Name | Corona Ball |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 |
| Overall Diameter | 1.375 INCHES NOMINAL IN |
| Mounting Method | THREADED HOLE(S) |
| Basic Shape Style | SPHERICAL |
| Thread Class | 2B |
| Material | COPPER ALLOY |
| Thread Size and Series/type Designator | 1/4-20 UNIFIED NATIONAL COARSE (UNC) |
| Mounting Hole Type | COUNTERBORED |
| 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 |
|---|---|
| 2105981-2 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 1086030C | 5/1 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 5920-01-062-8731 is a Corona Ball, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-062-8731 has 1 manufacturer part number on file: 2105981-2 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2105981-2: Mounting Facility Quantity: 1; Overall Diameter: 1.375 INCHES NOMINAL IN; Mounting Method: THREADED HOLE(S); Basic Shape Style: SPHERICAL. 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.