The Corona Ball, cataloged under National Stock Number 5920-01-171-2467, 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 Northrop Grumman Support Services Corp. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-171-2467 |
| Primary Part Number | 788C931H04 |
| Item Name | Corona Ball |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 |
| Overall Diameter | 1.000 INCHES NOMINAL IN |
| Mounting Method | THREADED HOLE(S) |
| Basic Shape Style | SPHERICAL |
| Surface Treatment | CHROMIUM OR NICKEL |
| Thread Class | 2B |
| Material | COPPER ALLOY |
| Thread Size and Series/type Designator | 1/10-32 UNIFIED NATIONAL COARSE (UNC) |
| Mounting Hole Type | PLAIN |
| 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 |
|---|---|
| 788C931H04 | Flightfab, Inc. Dba Ffi Aerospace & Defense (USA) |
| 788C931H04 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 788C931H04 | 5/9 Secondary reference Micro Machining, Inc |
| 788C931H04 | 3/9 Design control — primary reference U.S. Government activity |
| TS-35 | 5/9 Secondary reference Thermo Voltek Corp |
NSN 5920-01-171-2467 is a Corona Ball, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-171-2467 has 2 manufacturer part numbers on file: 788C931H04 (Flightfab, Inc. Dba Ffi Aerospace & Defense), 788C931H04 (Northrop Grumman Support Services Corp).
2 possible matches (shared part number, not a government interchangeability claim): 5120-01-292-6225, 6130-01-523-6797. Verify interchangeability with system specifications before substitution.
Key specifications for 788C931H04: Mounting Facility Quantity: 1; Overall Diameter: 1.000 INCHES NOMINAL IN; Mounting Method: THREADED HOLE(S); Basic Shape Style: SPHERICAL. 9 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.