The Fuse,cartridge, cataloged under National Stock Number 5920-00-553-6448, 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 Mersen Usa Ep Corp. Dba Ferraz Shawmut. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5920-00-553-6448 |
| Primary Part Number | OT250 |
| Item Name | Fuse,cartridge |
| FSC / FSG | 5920 / 59 — No Item Name Available |
| Manufacturer | Mersen Usa Ep Corp. Dba Ferraz Shawmut |
| Status | CANCELLED |
| Body Style | KNIFE BLADE TYPE |
| Interruption Indicator Method | OPAQUE BODY |
| Features Provided | NONRENEWABLE FUSIBLE ELEMENT |
| Maximum Voltage Rating in Volts | 250.0 DC |
| Nondefinitive Spec/std Data | 1 TYPE AND A STYLE |
| Terminal Thickness | 0.250 INCHES NOMINAL IN |
| Continuous Current Rating in Amps | 250.000 |
| Circuit Over-Current Interruption Type | NORMAL INSTANTANEOUS |
| Material | FIBER CASE |
| Overall Diameter | 2.406 INCHES MAXIMUM IN |
| Terminal Length | 1.875 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| WF791 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| F21A250V250A | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| OT250 PRIMARY | Mersen Usa Ep Corp. Dba Ferraz Shawmut (USA) |
| NON-250 PRIMARY | Cooper Bussmann, Llc Dba Cooper Industries (USA) |
| WF803SUPERSEDED | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 5920-00-553-6448 is a Fuse,cartridge, manufactured by Mersen Usa Ep Corp. Dba Ferraz Shawmut, classified under FSC 5920 (No Item Name Available). Status: cancelled.
NSN 5920-00-553-6448 has 5 cross-referenced part numbers: WF791 (Federal Specifications Promulgated by General Services Administration Washington DC), F21A250V250A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), OT250 (Mersen Usa Ep Corp. Dba Ferraz Shawmut), NON-250 (Cooper Bussmann, Llc Dba Cooper Industries), WF803SUPERSEDED (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 12 known substitutes for 5920-00-553-6448: 5920-00-057-0651, 5920-00-057-0652, 5920-00-057-0657 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for OT250: Body Style: KNIFE BLADE TYPE; Interruption Indicator Method: OPAQUE BODY; Features Provided: NONRENEWABLE FUSIBLE ELEMENT; Maximum Voltage Rating in Volts: 250.0 DC. 12 total characteristics are documented in the Federal Logistics Information System.
NSN 5920-00-553-6448 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.