The Fuseholder,block, cataloged under National Stock Number 5920-01-644-2630, 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 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-644-2630 |
| Primary Part Number | 354021-BL |
| Item Name | Fuseholder,block |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Littelfuse, Inc. |
| Status | ACTIVE |
| Mounting Hole Quantity | 1 |
| Body Style | CLIP CONNECTED TYPE |
| Mounting Hole Style | ONE HOLE MOUNTING |
| Voltage in Volts | 300.0 |
| Fuse Terminal Type Accommodated | SCREW |
| Unable to Decode | UNABLE TO DECODE |
| Current Carrying Rating in Amps | 30.0 |
| Environmental Attribute Code | NON-CADMIUM PRODUCT AND HEXAVALENT CHROMIUM ALTERNATIVE AND NON-LEAD ALTERNATIVE PRODUCTS |
| Base Thickness | 0.08 INCHES NOMINAL IN |
| Terminal Type and Quantity | 2 TAB, SOLDER LUG |
| 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 |
|---|---|
| 354021-BL PRIMARY | Littelfuse, Inc. (USA) |
NSN 5920-01-644-2630 is a Fuseholder,block, manufactured by Littelfuse, Inc., classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-644-2630 has 1 manufacturer part number on file: 354021-BL (Littelfuse, Inc.).
Key specifications for 354021-BL: Mounting Hole Quantity: 1; Overall Height: 0.53 INCHES NOMINAL IN; Body Style: CLIP CONNECTED TYPE; Mounting Hole Style: ONE HOLE MOUNTING. 11 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.