The Arrester,electrical Surge, cataloged under National Stock Number 5920-01-321-9037, 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 Autodyne Manufacturing Co Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-321-9037 |
| Primary Part Number | SM-A-838370-1 |
| Item Name | Arrester,electrical Surge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Autodyne Manufacturing Co Inc |
| Status | ACTIVE |
| Usage Design | OUTDOOR |
| Overall Diameter | 0.380 INCHES MAXIMUM IN |
| Breakdown Voltage | 76.500 VOLTS MINIMUM AND 103.500 VOLTS MAXIMUM |
| Arrester Type | GAS |
| Body Material | GLASS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SM-A-838370-1 | Autodyne Manufacturing Co Inc (USA) |
| A1-C90/20 | Siemens Corp (USA) |
| Reference | Meaning |
|---|---|
| SM-A-838370-1 | 3/2 Design control — primary reference U.S. Government activity |
| A1-C90/20Y25 | 5/9 Secondary reference Siemens Corp |
NSN 5920-01-321-9037 is a Arrester,electrical Surge, manufactured by Autodyne Manufacturing Co Inc, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-321-9037 has 2 manufacturer part numbers on file: SM-A-838370-1 (Autodyne Manufacturing Co Inc), A1-C90/20 (Siemens Corp).
Key specifications for SM-A-838370-1: Usage Design: OUTDOOR; Overall Diameter: 0.380 INCHES MAXIMUM IN; Breakdown Voltage: 76.500 VOLTS MINIMUM AND 103.500 VOLTS MAXIMUM; Arrester Type: GAS. 5 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.
NSN 5920-01-321-9037 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.