The Arrester,lightning, cataloged under National Stock Number 5920-01-024-4431, 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 Lockheed Martin Corporation Div Rms. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-024-4431 |
| Primary Part Number | 9L24FTB011AC |
| Item Name | Arrester,lightning |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Terminal Quantity | 2 |
| Usage Design | OUTDOOR |
| Terminal Type | THREADED STUD |
| Line to Ground Voltage | 4.500 KILOVOLTS NOMINAL |
| Mounting Method | THREADED STUD(S) |
| Breakdown Voltage | 17.000 KILOVOLTS NOMINAL |
| Arrester Type | AIR GAP |
| Body Material | PORCELAIN |
| Mounting Configuration | TWO THD STUDS OF @A/A SIZE AXIALLY LOCATED |
| 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 |
|---|---|
| 9L24FTB011AC PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 9L28AFJ601 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms |
| 9L28AAP031AC | 5/9 Secondary reference Lockheed Martin Corporation Div Rms |
NSN 5920-01-024-4431 is a Arrester,lightning, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-024-4431 has 1 manufacturer part number on file: 9L24FTB011AC (Lockheed Martin Corporation Div Rms).
Key specifications for 9L24FTB011AC: Terminal Quantity: 2; Usage Design: OUTDOOR; Terminal Type: THREADED STUD; Line to Ground Voltage: 4.500 KILOVOLTS NOMINAL. 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.