The Fuse,cartridge, cataloged under National Stock Number 5920-00-131-9781, is classified within Federal Supply Class 5920 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Cooper Bussmann, Llc Dba Cooper Industries. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-00-131-9781 |
| Primary Part Number | ACK1 |
| Item Name | Fuse,cartridge |
| FSC / FSG | 5920 / 59 — No Item Name Available |
| Manufacturer | Cooper Bussmann, Llc Dba Cooper Industries |
| Status | ACTIVE |
| Mounting Slot Width | 0.266 INCHES NOMINAL IN |
| Maximum Voltage Rating in Volts | 125.0 AC AND 125.0 DC |
| Overall Diameter | 0.562 INCHES NOMINAL IN |
| Interruption Indicator Method | OPAQUE BODY |
| Body Length | 1.625 INCHES NOMINAL IN |
| Features Provided | NONRENEWABLE FUSIBLE ELEMENT |
| Circuit Over-Current Interruption Type | TIME DELAY |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.250 INCHES NOMINAL IN |
| Circuit Over-Current Interruption Delay Time in Seconds | 100.0 200 PCT OF CURRENT RATING AND 13.0 400 PCT OF CURRENT RATING |
| Continuous Current Rating in Amps | 1.000 |
| Surface Treatment | NICKEL TERMINAL |
| Body Style | AXIAL TERMINAL TYPE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5920-00-131-9781 is a Fuse,cartridge, manufactured by Cooper Bussmann, Llc Dba Cooper Industries, classified under FSC 5920 (No Item Name Available). Status: active.
NSN 5920-00-131-9781 has 2 cross-referenced part numbers: ACK1 (Cooper Bussmann, Llc Dba Cooper Industries), 1321-1 (Littelfuse, Inc.).
There are 11 known substitutes for 5920-00-131-9781: 6625-00-392-6201, 5977-00-592-2466, 5950-00-738-6417 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for ACK1: Mounting Slot Width: 0.266 INCHES NOMINAL IN; Maximum Voltage Rating in Volts: 125.0 AC AND 125.0 DC; Overall Diameter: 0.562 INCHES NOMINAL IN; Interruption Indicator Method: OPAQUE BODY. 13 total characteristics are documented in the Federal Logistics Information System.