391128-9 REV. A

3911289REVA Connector Adapter

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Datasheet. 391128-9 REV. A 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, internal coupling

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

0.875in. ⁓7/8"

Overall Diameter
A measurement of the longest straight line across a circular cross-sectional plane.

0.255in. ⁓17/64"

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

moisture resistant and shock proof and vibration proof

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

coupling facility

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

2

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

sma all mating ends

Contact Removability
An indication of whether or not the contact(s) is removable.

nonremovable all mating ends single contact grouping

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

solid

Connector Locking Method
The means used to secure a connector to its mating counterpart.

externally threaded shell

Radio Frequency Type Contact Characteristic Impedance In Ohms
The impedance for which the item is designed for maximum power transfer,expressed in ohms.

50.0 all mating ends single contact grouping

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

36

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

0.250in. ⁓1/4"

Contact Material
The chemical compound or mechanical mixture properties of which the contact is fabricated.

copper alloy all mating ends single contact grouping

Contact 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 contact surface(s) and cannot be wiped off.

gold all mating ends single contact grouping

Contact Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the contact surface treatment material.

MIL-G-45204, ty 2, cl 2 mil spec single treatment response all mating ends single contact grouping

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

steel

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.

passivate

Shell Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like that identifies the shell surface treatment material.

MIL-S-5002 mil spec single treatment response

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

1 all mating ends single contact grouping

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

coaxial socket all mating ends single contact grouping

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

contact surfaces gold

Precious Material And Weight
An indication of the precious material contained in the item,and the amount per a measurement scale.

0.010 gold grains, troy

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.

uns

Answers.

What class is the thread series?

Uns

What is the thread quantity per inch?

36

What is the thread direction?

Right-hand

What is the thread class?

2a

What is the NSN for 391128-9 REV. A?

5935-01-122-0974

How is this classified for shipping?

Schedule B number: 8548900100
nmfc 061680
Electrical parts of machinery or apparatus not specified or included elsewhere in chapter 85

What's the federal classification of 391128-9 REV. A?

FSC 5935 ⁓ Connectors, electrical

Excluding interconnectors, fiber optic

NSN 5935-01-122-0974 ADAPTER,CONNECTOR

uns thread series 36 thread quantity per inch 0.875" overall length right-hand 2a thread class

NIIN
011220974
NIIN Date
11/14/81
Schedule B
8548900100 
Name Code
15091
FIIG
A039B0
Item Weight
0.400lbs
Item Dimensions
9 X 3 X 3
QUP
 
Historical Price
$17.23 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. 6010858-001 Cage 12436
2. TRU-7155P Cage 92180
3. 2992-6037 Cage 95077
4. 2080-5055-02 Cage 26805

Major End Users Countries and entities

  • - Singapore 
  • - Belgium 
  • - Germany 
  • - Republic of Korea 
  • - Norway 
  • - Greece 
  • - Nato Maintenance And Supply Agency 

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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 adapters with similar characteristics

Nothing similar to this part number was found in our inventory

391128-9 REV. A / Adapter,connectorWhat is the formal definition of this item?

An adapter with electrical contacts which provides facilities for joining two or more electrical connectors, whose design or function will not normally warrant their junction. it is not designed for permanent attachment to a cable, cord, coaxial line, or wire. the physical shape of an electrical connector should not be the determining factor of its name. tee, angle, straight, and y-shaped adapters are all adapter, connector. excludes adapter, connector to lampbase; adapter, lampholder to connector; adapter (1), cable clamp to connector; and adapter, lampholder. for items designed as a mechanical connection between an electrical conduit and an electrical connector, see adapter (1), electrical conduit.