The Fuse,cartridge, cataloged under National Stock Number 5920-00-489-7022, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-00-489-7022 |
| Primary Part Number | L25S100 |
| Item Name | Fuse,cartridge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Littelfuse, Inc. |
| Status | ACTIVE |
| Continuous Current Rating in Amps | 100.000 |
| Body Style | HOLE TYPE |
| Overall Diameter | 1.219 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.375 INCHES NOMINAL IN |
| Precious Material | SILVER |
| Terminal Thickness | 0.188 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.312 INCHES NOMINAL IN |
| Interruption Indicator Method | OPAQUE BODY |
| Features Provided | NONRENEWABLE FUSIBLE ELEMENT |
| Surface Treatment | SILVER TERMINAL |
| Precious Material and Location | TERMINAL SURFACES SILVER |
| Maximum Voltage Rating in Volts | 250.0 AC AND 250.0 DC |
| Material | CERAMIC CASE |
| Circuit Over-Current Interruption Type | NORMAL INSTANTANEOUS |
| 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 |
|---|---|
| L25S100 | Littelfuse, Inc. (USA) |
| 225M | Reliance Comm/tec Corp Lorain Products Div (USA) |
| 2485-361 | Reliance Comm/tec Corp Lorain Products Div (USA) |
| Reference | Meaning |
|---|---|
| A25Z100 | 3/9 Design control — primary reference Mersen Usa Ep Corp. Dba Ferraz Shawmut |
NSN 5920-00-489-7022 is a Fuse,cartridge, manufactured by Littelfuse, Inc., classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-00-489-7022 has 3 manufacturer part numbers on file: L25S100 (Littelfuse, Inc.), 225M (Reliance Comm/tec Corp Lorain Products Div), 2485-361 (Reliance Comm/tec Corp Lorain Products Div).
1 possible match (shared part number, not a government interchangeability claim): 8415-01-661-4028. Verify interchangeability with system specifications before substitution.
Key specifications for L25S100: Continuous Current Rating in Amps: 100.000; Body Style: HOLE TYPE; Overall Diameter: 1.219 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.375 INCHES NOMINAL IN. 14 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.