The Fuseholder,block, cataloged under National Stock Number 5920-01-424-5228, 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 Mersen Usa Ep Corp. Dba Ferraz Shawmut. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-424-5228 |
| Primary Part Number | 30311 |
| Item Name | Fuseholder,block |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Mersen Usa Ep Corp. Dba Ferraz Shawmut |
| Status | ACTIVE |
| Accommodated Fuse Length | 1.500 INCHES NOMINAL IN |
| Accommodated Ferrule Diameter | 0.406 INCHES NOMINAL IN |
| Fuse Terminal Type Accommodated | FERRULE |
| 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 |
|---|---|
| 501-6853591 ITEM 8 | Naval Sea Systems Command (USA) |
| 1812L050 | Littelfuse, Inc. (USA) |
| 30311 PRIMARY | Mersen Usa Ep Corp. Dba Ferraz Shawmut (USA) |
| Reference | Meaning |
|---|---|
| 30311 | C/1 Advisory reference — outside the item-of-supply concept Mersen Canada Toronto Inc |
| 30311 | C/1 Advisory reference — outside the item-of-supply concept Thompson Numerical Inc |
| 30311 | C/1 Advisory reference — outside the item-of-supply concept Jo-Kell Inc. Dba Jo-Kell Inc |
| 7310-007 | 5/9 Secondary reference Precise Power Corporation |
NSN 5920-01-424-5228 is a Fuseholder,block, manufactured by Mersen Usa Ep Corp. Dba Ferraz Shawmut, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-424-5228 has 3 manufacturer part numbers on file: 501-6853591 ITEM 8 (Naval Sea Systems Command), 1812L050 (Littelfuse, Inc.), 30311 (Mersen Usa Ep Corp. Dba Ferraz Shawmut).
Key specifications for 30311: Accommodated Fuse Length: 1.500 INCHES NOMINAL IN; Overall Height: 1.310 INCHES NOMINAL IN; Overall Length: 3.040 INCHES NOMINAL IN; Overall Width: 0.850 INCHES NOMINAL IN. 4 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.