The Fuseholder,receptacle, cataloged under National Stock Number 5920-01-720-6123, 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 Littelfuse, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-720-6123 |
| Primary Part Number | 01550020ZXU |
| Item Name | Fuseholder,receptacle |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Littelfuse, Inc. |
| Status | ACTIVE |
| Mounting Hole Style | IN-LINE ALONG THE WIDTH |
| Overall Diameter | 0.250 INCHES NOMINAL IN |
| Voltage in Volts | 32.0 |
| Fuse Terminal Type Accommodated | PIN |
| Surface Treatment | TIN CONTACT |
| Current Carrying Rating in Amps | 20.0 |
| Material | COPPER ALLOY CONTACT |
| Terminal Type and Quantity | 2 PIN |
| Fuse Accommodation Quantity | 1 |
| 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 |
|---|---|
| 01550020ZXU PRIMARY | Littelfuse, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 01550020ZXU | 5/9 Secondary reference Digi-Key Corp |
NSN 5920-01-720-6123 is a Fuseholder,receptacle, manufactured by Littelfuse, Inc., classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-720-6123 has 1 manufacturer part number on file: 01550020ZXU (Littelfuse, Inc.).
Key specifications for 01550020ZXU: Mounting Hole Style: IN-LINE ALONG THE WIDTH; Overall Diameter: 0.250 INCHES NOMINAL IN; Voltage in Volts: 32.0; Overall Length: 1.26 INCHES NOMINAL IN. 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.