The Fuseholder,block, cataloged under National Stock Number 5920-01-730-5736, 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 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-730-5736 |
| Primary Part Number | 177.5721.0001 |
| Item Name | Fuseholder,block |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Littelfuse, Inc. |
| Status | ACTIVE |
| Accommodated Fuse Length | 11.0 MILLIMETERS NOMINAL MM |
| Mounting Hole Quantity | 2 |
| Body Style | OPEN TYPE |
| Mounting Hole Style | IN-LINE ALONG THE LENGTH |
| Voltage in Volts | 80.0 |
| Center to Center Distance Between Fuse Contacts | 61.5 MILLIMETERS MINIMUM AND 62.0 MILLIMETERS MAXIMUM MM |
| Current Carrying Rating in Amps | 425.0 |
| 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 |
|---|---|
| 50035383-01 | Kongsberg Defence & Aerospace As (NOR) |
| 177.5721.0001 PRIMARY | Littelfuse, Inc. (USA) |
NSN 5920-01-730-5736 is a Fuseholder,block, manufactured by Littelfuse, Inc., classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-730-5736 has 2 manufacturer part numbers on file: 50035383-01 (Kongsberg Defence & Aerospace As), 177.5721.0001 (Littelfuse, Inc.).
Key specifications for 177.5721.0001: Accommodated Fuse Length: 11.0 MILLIMETERS NOMINAL MM; Mounting Hole Quantity: 2; Overall Height: 50.7 MILLIMETERS MINIMUM AND 51.3 MILLIMETERS MAXIMUM MM; Body Style: OPEN TYPE. 7 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.