The Fuse,cartridge, cataloged under National Stock Number 5920-00-138-5239, 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 Cooper Bussmann, Llc Dba Cooper Industries. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5920-00-138-5239 |
| Primary Part Number | ALS400 |
| Item Name | Fuse,cartridge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Cooper Bussmann, Llc Dba Cooper Industries |
| Status | ACTIVE |
| Continuous Current Rating in Amps | 400.000 |
| Body Style | AXIAL TERMINAL TYPE |
| Overall Diameter | 1.125 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.938 INCHES NOMINAL IN |
| Interruption Indicator Method | OPAQUE BODY |
| Features Provided | NONRENEWABLE FUSIBLE ELEMENT |
| Body Length | 2.469 INCHES NOMINAL IN |
| Maximum Voltage Rating in Volts | 300.0 AC AND 250.0 DC |
| Material | COPPER TERMINAL |
| Material | FIBER CASE |
| Circuit Over-Current Interruption Type | NORMAL INSTANTANEOUS |
| Mounting Slot Width | 0.359 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN |
| 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 |
|---|---|
| ALS400 PRIMARY | Cooper Bussmann, Llc Dba Cooper Industries (USA) |
| 4996841-5 | Kalmar AC Inc (USA) |
| Reference | Meaning |
|---|---|
| BMC-ALS-400 | C/1 Advisory reference — outside the item-of-supply concept Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. |
| AOK400 | 5/9 Secondary reference Federal Pacific Electric Co Economy Fuse Div |
NSN 5920-00-138-5239 is a Fuse,cartridge, manufactured by Cooper Bussmann, Llc Dba Cooper Industries, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-00-138-5239 has 2 manufacturer part numbers on file: ALS400 (Cooper Bussmann, Llc Dba Cooper Industries), 4996841-5 (Kalmar AC Inc).
Key specifications for ALS400: Continuous Current Rating in Amps: 400.000; Body Style: AXIAL TERMINAL TYPE; Overall Diameter: 1.125 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.938 INCHES NOMINAL IN. 12 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.