AP12-1R-4-1-251

View detailed technical data, stock status, and sourcing information for: AP12-1R-4-1-251
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5925 Circuit Breakers

National Stock Number

5925-01-256-9635

Item Name Code

00136

Assigment Date

06/10/1987 (39 years ago)

A resistor whose ohmic value cannot be adjusted or varied. The resistance element consists of either a thin layer of conductive material, containing either binders or insulating materials, deposited on an insulated form; or an alloy of metal and ceramic materials, usually fused to an insulated form. Opposition to the flow of current is an inherent property of the materials used and is manifest by the heat dissipation in the resistor. See also attenuator, fixed and resistor, fixed, composition. Excludes:carbon composition type resistors.

1.562 inches maximum body length, multipole-single actuator type body style, 1.281 inches maximum body width, 0.380 inches maximum bushing length, 0.906 inches maximum center to center distance between terminals parallel to length

Product Characteristics

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

Body Style: multipole-single actuator type
Bushing Length: 0.380 inches maximum
Body Length: 1.562 inches maximum
Body Width: 1.281 inches maximum
Center To Center Distance Between Terminals Parallel To Length: 0.906 inches maximum
Center To Center Distance Between Terminals Parallel To Width: 0.625 inches nominal
Switch Contact Arrangement: single pole, double throw
Mounting Surface To Terminal End Distance: 1.828 inches maximum
Pole Quantity: 2
Mounting Facility Type And Quantity: 1 threaded bushing w/panel seal
Thread Quantity Per Inch: 32
Maximum Continuous Load Current Rating Per Pole: 250.0 milliamperes ac and 250.0 milliamperes dc all locations
Operating Voltage Type And Rating Per Pole In Volts: 240.0 ac and 50.0 dc all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps: 300.0 ac and 500.0 dc all locations
Circuit Protection Type: overcurrent all locations
Trip Release Method: magnetic all locations
Trip Release Characteristic: time delay all locations
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent: 125.0 all locations
Reset Method: manual
Main Contact Tripping Mechanism Type: trip free
Manual Actuator Type And Quantity: 1 toggle
Actuator Function: trip-reset
Actuator Position Designation: between pole one and two
Auxiliary Switch Function And Quantity: 1 alarm
Internal Trip Release Configuration: series trip all locations
Nominal Thread Size: 0.375 inches
Switch Location And Position Designation: internal at pole two
Trip Delay Time In Seconds Per Rated Continuous Current: 0.055 minimum at 200 pct and 0.950 maximum at 200 pct all locations
Inclosure Protection Type For Which Designed: fungus resistant and hermetically sealed
Switch Terminal Type: tab, solder lug
Switch Current Rating And Type In Amps: 0.5 ac and 0.5 dc
Switch Voltage Rating And Type In Volts: 120.0 ac and 50.0 dc
Frequency In Hertz: 400.0 all locations
Test Data Document: "81349-mil-c-39019 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
Thread Series Designator: unef
Terminal Type And Quantity: 4 wire hook
Specification/Standard Data: 81349-mil-c-39019/4 government specification

Replaces National Stock Numbers

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

NSN	Name	Date
5925-01-013-4011	No Name Available	05/07/2009

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
AP12-1R-4-1-251	Circuit Breaker
M39019/04-206	Circuit Breaker
X24-311-165	Circuit Breaker

FAQs

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

What is the FSCG of the NSN 5925-01-256-9635?

The FSCG of the NSN 5925-01-256-9635 is 5925

Does the NSN 5925-01-256-9635 have a Schedule B code assigned?

Yes, the Schedule B code is 8536200040

Does NSN 5925-01-256-9635 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 5925-01-256-9635 contain precious materials?

Item does not contain precious metal.

Does NSN 5925-01-256-9635 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 5925-01-256-9635 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Wed, Jun 10, 1987