MS55629/6-059

Circuit Breaker

This page provides complete and verified information for part number MS55629/6-059, NSN 5925-01-226-8319

You’ll find detailed technical specifications, product attributes, condition classification, and real-time stock availability. All data is based on official records and meets industry standards for defense, aerospace, and industrial sourcing. Whether you’re performing a parts audit, validating compliance, or preparing a purchase order, this part listing supports accurate and efficient procurement.

MS55629/6-059
Federal Supply Group
Electrical and Electronic Equipment Components
Federal Supply Classification
5925 Circuit Breakers
National Stock Number
5925-01-226-8319
Item Name Code
00136
Assigment Date
02/24/1986 (40 years ago)

"a device with means other than fuses for automatically opening the circuit in which it is installed when the current varies from the predetermined value for which the device is set. May include provisions for manual operation. At least one set of contacts must be in series with the actuating element(s). A combination of semiconductor and passive devices may be used in lieu of contacts. For automatically operated items in which the actuating (tripping) element and contacts are not in series, see relay (as modified). For items which are operated both manually and automatically but the actuating elements and contact are not in series, see relay-switch. Excludes:circuit breaker box and magneto "breaker" assemblies. See also switch (as modified); and controller."

2.156 inches minimum and 2.344 inches maximum body width, 0.719 inches minimum and 0.781 inches maximum center to center distance between terminals parallel to width, 2.510 inches maximum body length, 1.660 inches minimum and 1.960 inches maximum center to center distance between terminals parallel to length, multipole-multiple actuator type body style

Characteristics

Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.

Body Style
multipole-multiple actuator type
Body Length
2.510 inches maximum
Body Width
2.156 inches minimum and 2.344 inches maximum
Center To Center Distance Between Terminals Parallel To Length
1.660 inches minimum and 1.960 inches maximum
Center To Center Distance Between Terminals Parallel To Width
0.719 inches minimum and 0.781 inches maximum
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
2.046 inches minimum and 2.078 inches maximum
Switch Contact Arrangement
single pole, double throw
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
0.719 inches minimum and 0.781 inches maximum
Fragility Factor
moderately rugged
Boss Height
0.109 inches minimum and 0.171 inches maximum
Mounting Surface To Terminal End Distance
2.800 inches maximum
Pole Quantity
3
Arc Quenching Method
magnetic blowout
Mounting Facility Type And Quantity
6 threaded hole
Storage Type
general purpose warehouse
Thread Quantity Per Inch
32
Maximum Continuous Load Current Rating Per Pole
7.0 amperes ac all locations
Operating Voltage Type And Rating Per Pole In Volts
240.0 ac all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
1000.0 ac 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
3 toggle
Actuator Function
trip-reset
Actuator Position Designation
at each pole
External Actuator Linkage Arrangement
one, two, and three linked
Auxiliary Switch Function And Quantity
1 alarm
Internal Trip Release Configuration
series trip all locations
Nominal Thread Size
0.138 inches
Switch Location And Position Designation
internal at pole one
Trip Delay Time In Seconds Per Rated Continuous Current
2.200 minimum at 200 pct and 20.000 maximum at 200 pct all locations
Inclosure Protection Type For Which Designed
fungus resistant and moisture resistant
Switch Terminal Type
tab, solder lug
Switch Current Rating And Type In Amps
10.0 ac and 2.0 dc
Switch Voltage Rating And Type In Volts
250.0 ac and 50.0 dc
Frequency In Hertz
60.0 all locations
Material
plastic case
Test Data Document
"81349-mil-c-55629 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
unc
Terminal Type And Quantity
6 threaded stud
Specification/Standard Data
81349-mil-c-55629/6 government specification

Classification Data

Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.

Type of Item Identification
4 - Partial descriptive item identification (type 1 concept)
Demilitarization
A - 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.
Criticality
X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Federal Item Identification Guide
A030A0
Precious Metals Indicator
A - Item does not contain precious metal.
Pseudo Item Name Code
0000136
Hazardous Material Indicator
P - 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.
Schedule B Code
8536200040

Freight Information

Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.

Major Organizational Entity
TH
National Motor Freight Classification Item Number
063160
National Motor Freight Classification Sub-Item Number
Z
Uniform Freight Classification Item Number
35205
National Motor Freight Class Rating
W - Rating variable
Water Commodity
72D - Communications/electronics, other than sigint/ew or comsec repair parts and components
Type of Cargo
Z - No special type of cargo code applicable
Special Hand
9 - Other or no special handling required (sh)
Air Dimension
A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
Air Commodity
HZ -
National Motor Freight Description
switch boxes/elec enclosures

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for MS55629/6-059

What is the FSCG of the NSN 5925-01-226-8319?
The FSCG of the NSN 5925-01-226-8319 is 5925
Does the NSN 5925-01-226-8319 have a Schedule B code assigned?
Yes, the Schedule B code is 8536200040
Does NSN 5925-01-226-8319 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 5925-01-226-8319 contain precious materials?
Item does not contain precious metal.
Does NSN 5925-01-226-8319 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 5925-01-226-8319 was assigned to the Federal Catalog?
It was assigned 40 years ago, on Mon, Feb 24, 1986

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