The Fuse,cartridge, cataloged under National Stock Number 5920-00-577-4716, 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 9 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-00-577-4716 |
| Primary Part Number | FNQ1 |
| 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 | 1.000 |
| Body Style | TUBE TYPE |
| Circuit Over-Current Interruption Delay Time in Seconds | 5.0 200 PCT OF CURRENT RATING |
| Overall Diameter | 0.406 INCHES NOMINAL IN |
| Interruption Indicator Method | OPAQUE BODY |
| Features Provided | NONRENEWABLE FUSIBLE ELEMENT |
| Surface Treatment | SOLDER TERMINAL |
| Maximum Voltage Rating in Volts | 500.0 AC |
| Circuit Over-Current Interruption Type | TIME DELAY |
| 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 |
|---|---|
| FNQ1 PRIMARY | Cooper Bussmann, Llc Dba Cooper Industries (USA) |
| 345-012-9003 | Be Aerospace Consumables Management Dba Consumables Solutions Div Consumables Solutions (USA) |
| FLQ1 | Littelfuse, Inc. (USA) |
| 712043 | Pacific Power Source Inc (USA) |
| Reference | Meaning |
|---|---|
| 398-0456-000 | 5/2 Secondary reference U.S. Government activity |
| MEQ1 | 5/9 Secondary reference Federal Pacific Electric Co Economy Fuse Div |
| 345-012-9003 | 5/9 Secondary reference Be Aerospace Consumables Management Dba Aerospace Services Div Consumables Solutions |
| ATQ1 | C/1 Advisory reference — outside the item-of-supply concept Mersen Canada Toronto Inc |
| ATQ-1 | 5/9 Secondary reference Mersen Usa Ep Corp. Dba Ferraz Shawmut |
| 10129255 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| FNQ1F | C/1 Advisory reference — outside the item-of-supply concept Bussman |
| 3006N15P001 | C/1 Advisory reference — outside the item-of-supply concept General Electric Company Dba Ge |
| 5920PL1297703 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 128208010 | C/1 Advisory reference — outside the item-of-supply concept Eaton Corporation |
NSN 5920-00-577-4716 is a Fuse,cartridge, manufactured by Cooper Bussmann, Llc Dba Cooper Industries, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-00-577-4716 has 4 manufacturer part numbers on file: FNQ1 (Cooper Bussmann, Llc Dba Cooper Industries), 345-012-9003 (Be Aerospace Consumables Management Dba Consumables Solutions Div Consumables Solutions), FLQ1 (Littelfuse, Inc.), 712043 (Pacific Power Source Inc).
Key specifications for FNQ1: Continuous Current Rating in Amps: 1.000; Body Style: TUBE TYPE; Circuit Over-Current Interruption Delay Time in Seconds: 5.0 200 PCT OF CURRENT RATING; Overall Diameter: 0.406 INCHES NOMINAL IN. 9 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.