FRN4

View detailed technical data, stock status, and sourcing information for: FRN4
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5920 Fuses, Arrestors, Absorbers and Protectors

National Stock Number

5920-00-131-9921

Item Name Code

00248

Assigment Date

01/01/1963 (63 years ago)

A fuse in which the element is inclosed in a cylindrical body. The element may be renewable. The terminals may be of varying types. It may contain a visual indication that the fusible element is severed, and may also provide an audible alarm through auxiliary circuitry. For noncylindrical items, see fuse, inclosed link.

0.562 inches nominal overall diameter, 2.000 inches nominal overall length, 4.000 continuous current rating in amps, 250.0 ac and 250.0 dc maximum voltage rating in volts, tube type body style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Body Style: tube type
Overall Length: 2.000 inches nominal
Overall Diameter: 0.562 inches nominal
Continuous Current Rating In Amps: 4.000
Maximum Voltage Rating In Volts: 250.0 ac and 250.0 dc
Circuit Over-Current Interruption Type: normal instantaneous
Interruption Indicator Method: opaque body
Features Provided: nonrenewable fusible element
Material: fiber case

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5920-00-057-2957	No Name Available	01/01/1963
5920-00-644-0376	No Name Available	04/26/1971

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
226-1012PT15	Cartridge Fuse
FRN4	Cartridge Fuse

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5920-00-131-9921?

The FSCG of the NSN 5920-00-131-9921 is 5920

Does the NSN 5920-00-131-9921 have a Schedule B code assigned?

Yes, the Schedule B code is 8536100040

Does NSN 5920-00-131-9921 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5920-00-131-9921 contain precious materials?

Precious metal content is unknown

Does NSN 5920-00-131-9921 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5920-00-131-9921 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963