26521-1

View detailed technical data, stock status, and sourcing information for: 26521-1
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5930 Switches

National Stock Number

5930-00-979-5682

Item Name Code

00451

Assigment Date

01/01/1960 (66 years ago)

3a single threaded bushing thread class, 0.594 inches minimum and 0.625 inches maximum single threaded bushing thread length, 0.859 inches minimum and 0.891 inches maximum overall width, 1.297 inches minimum and 1.328 inches maximum overall height, 7.469 inches maximum overall length

Product Characteristics

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

Thread Class: 3a single threaded bushing
Thread Length: 0.594 inches minimum and 0.625 inches maximum single threaded bushing
Overall Length: 7.469 inches maximum
Overall Height: 1.297 inches minimum and 1.328 inches maximum
Overall Width: 0.859 inches minimum and 0.891 inches maximum
Body Diameter: 0.234 inches minimum and 0.266 inches maximum
Body Length: 3.328 inches maximum
Bulb Length: 3.515 inches nominal
Bulb Diameter: 0.234 inches minimum and 0.266 inches maximum
Temp Sensing Element Type: bulb
Mounting Method: threaded bushing
Thread Quantity Per Inch: 20 single threaded bushing
Contact Action Stimulus: increase
Nominal Thread Size: 0.500 inches single threaded bushing
Nonpile-Up Contact Arrangement: 1 pole, single throw, normally closed, momentary action
Terminal Type: tab w/screw
Contact Load Current Rating: 1.0 amperes resistive load single voltage
Contact Adjustability: deactuation point adjustable, preset and actuation point adjustable, preset
Contact Adjustment Range: -20.00 to 1750.00 actuation point degrees fahrenheit and -20.00 to 1750.00 deactuation point degrees fahrenheit
Contact Adjustment Type: external deactuation point screw and external actuation point screw
Contact Stimulus Rating: 1120.00 actuation point nominal degrees fahrenheit and 1105.00 deactuation point nominal degrees fahrenheit
Contact Voltage Rating In Volts: 28.0 dc at sea level single voltage
Media For Which Designed: gas
Style Designator: rectangular
Thread Series Designator: unf single threaded bushing

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5930-00-296-9393	No Name Available	03/31/1972

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
26521-1	Thermostatic Switch
P-4090-105	Thermostatic Switch
X3002-505	Thermostatic Switch

FAQs

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

What is the FSCG of the NSN 5930-00-979-5682?

The FSCG of the NSN 5930-00-979-5682 is 5930

Does the NSN 5930-00-979-5682 have a Schedule B code assigned?

Yes, the Schedule B code is 9032100000

Does NSN 5930-00-979-5682 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 5930-00-979-5682 contain precious materials?

Precious metal content is unknown

Does NSN 5930-00-979-5682 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 5930-00-979-5682 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960