257A559-1

257A5591 Receptacle Electrical Connector

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Datasheet. 257A559-1 specification

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

2a

Thread Direction
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.

RIGHT-Hand

Body Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the body.

straight shape, external coupling

Overall Length
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.

45.7 mm and 46.3 mm

Overall Height
The distance measured in a straight line from the bottom to the top of an item.

45.7 mm and 46.3 mm

Overall Width
An overall measurement taken at right angles to the length of an item,in distinction from thickness.

32.0 mm

Environmental Protection
The environmental elements or conditions that an item is designed or protected to resist or withstand satisfactorily.

corrosion resistant and fungus resistant and moisture resistant and salt spray proof and shock resistant and vibration resistant and weather resistant

Center To Center Distance Between Mounting Facilities Parallel To Height
The distance between the center of one mounting facility and the center of the adjacent mounting facility parallel to the height.

38.1 mm

Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
The distance between centerlines of mounting facilities parallel to the width of the item.

0.500in.

Distance From Mounting Shoulder To Front Face

2.1in.

Mounting Facility Thickness

0.162in. and 0.171in.

Threaded Device Type
Indicates the type of threaded device included on the item.

back shell and coupling facility

Mating End Quantity
The number of mating ends provided with the item which are designed to accommodate another connector.

1

Contact Position Arrangement Style
The style designation indicating the configuration that most nearly corresponds to the arrangement of the contact position/s/.

25-35 single mating end

Polarization Method
The means used to prevent mismating or cross plugging of contacts.

keyway or multiple keyway

Shell Type
Indicates the type of shell included on the item.

solid

End Item Identification
The national stock number or the identification information of the end equipment for which the item is a part.

A10

Operating Temp Rating
The temperature at which the item operates.

200.0 deg celsius

Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.

1.625in. ⁓1-5/8"

Terminal Location
Indicates the location of the terminal/s/ on the item.

back single mating end single contact grouping

Terminal Type
Indicates the type of terminal for providing electrical connection to the item.

crimp single mating end single contact grouping

Shell Material
The chemical compound or mechanical mixture properties of which the shell is fabricated.

resin synthetic

Shell Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the shell surface/s/ and cannot be wiped off.

cadmium

Thread Tolerance Class
A numeric-alpha designator indicating established pitch and crest diameter tolerance position and grade.

6g external

Included Contact Quantity
The number of contacts included with the item which provides electrical connection.

128 single mating end single contact grouping

Included Contact Type
Indicates the type of contact(s) included with the item.

round pin single mating end single contact grouping

Special Features
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.

center to center distance between bottom mounting facilities parallel to both height and body is 34.9mm

Precious Material And Location
An indication of the precious material and its location in the item.

contact surfaces gold

Precious Material
Identification of the precious material contained in the item.

gold

Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

iso m

Answers.

What quantity is this sold in?

1EA

What class is the thread series?

Iso m

What is the overall width?

32.0 millimeters

What is the thread direction?

Right-hand

What is the thread class?

2a

What is the NSN for 257A559-1?

5935-01-604-8140

How is this classified for shipping?

Schedule B number: 8538907080
nmfc 061680
Parts suitable for use solely or principally with the apparatus for heading 8535, 8536,8537

What's the federal classification of 257A559-1?

FSC 5935 ⁓ Connectors, electrical

Excluding interconnectors, fiber optic

NSN 5935-01-604-8140 CONNECTOR,RECEPTACLE,ELECTRICAL

Used on A10. iso m thread series center to center distance between bottom mounting facilities parallel to both height 32.0mm overall width 45.7mm overall length right-hand 2a thread class

NIIN
016048140
NIIN Date
04/13/12
Schedule B
8538907080 
Name Code
15093
FIIG
A039B0
QUP
Historical Price
$186.60 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Contains gold
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. 88-579779-358 Cage 77820
2. 88-579779-358 Cage 77820

Major End Users Countries and entities

  • - Department of The Air Force 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
Rating variable 
LCL (less than a car load rating)
Unknown
Special Cargo
No special type of cargo code applicable 
Air Freight (Minimum cargo door size required)
Shipment is not a consolidation and does not exceed 84 inches in any dimension. 
Customs Requirement Classification
Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps) 
Commodity (for shipments via water)
Electrical appliances, small 
NMFC (national motor freight code)
061680 ELEC WIRING PLUGS ETC 
UFC (universal freight code)
34570 

Similar by Design Other connectors with similar characteristics

Nothing similar to this part number was found in our inventory

257A559-1 / Connector,receptacle,electricalWhat is the formal definition of this item?

An electrical fitting with electrical contacts constructed to be affixed to the end of a cable, conduit, coaxial line, cord, wire (includes printed/etched), printed wiring board, or the like for convenience in joining with another electrical connector(s) or printed wiring board. it is designed to be mounted on a bulkhead, chassis, panel, wall, printed wiring board, or the like. excludes lampholder; jack, telephone; jack, tip; insert electrical connector; insert module, electrical connector; connector body (as modified) and socket, plug-in electronic components. see also wiring harness (as modified) and cable assembly (as modified). for items with termination wires of more than four inches in length, see lead assembly, electrical. for items without inserts, see shell, electrical connector.