J5121

J5121 Tube Coupling

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Quality Commitment

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Datasheet. J5121 specification

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

2b all ends

Maximum Operating Temp
The maximum temperature at which the item is rated to operate for an extended period of time.

250.0 deg fahrenheit single response

Connection Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.

inverted flare (tube) all ends

Connection Type
Indicates the type of connection/s/.

threaded internal tube all ends

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

28 all ends

Maximum Operating Pressure
The maximum pressure at which the item is rated for operation.

3500.0 pounds per square inch single response

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

0.312in. all ends ⁓5/16"

Seat Angle
The angle of the end surface upon which the mated surface seats.

42.0 degrees all ends

Nominal Outside Diameter Tube Accommodated
The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.

0.125in. all ends

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

0.600in.

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

copper alloy

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

rigid, long center wrenching facility

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.

un all ends

Specification/standard Data
The document designator of the specification or standard which established the item of supply.

81343-J5121 professional/industrial association standard

Nondefinitive Spec/std Data
The number,letter,or symbol that indicates the type,style,grade,class,and the like,of an item in a nonidentifying specification or standard.

5 figure

Answers.

What quantity is this sold in?

1EA

What class is the thread series?

Un all ends

What is the style?

Rigid, long center wrenching facility

What material is the tube coupling made of ?

Copper alloy

What is the thread quantity per inch?

28 all ends

What is the thread class?

2b all ends

What is the NSN for J5121?

4730-00-454-9605

How is this classified for shipping?

Schedule B number: 7412200000
nmfc 052185
Copper alloy tube or pipe fittings

What's the federal classification of J5121?

FSC 4730 ⁓ Hose, pipe, tube, lubrication, and railing fittings

Excluding air conditioning-heating fittings (fsc 4520); bituminized fiber and concrete fittings (fsc 5630); conduit boxes and fittings (fsc 5975); downspout fittings (fsc 5670); medical and surgical fittings (fsc 6515); laboratory fittings (fsc 6640); post caps and rail ends (fsc 5660); machine thread bushings and plugs (fsc 5365).

NSN 4730-00-454-9605 COUPLING,TUBE

un all ends thread series rigid, long center wrenching facility 28 all ends thread quantity per inch 2b all ends thread class

NIIN
004549605
NIIN Date
06/04/71
Schedule B
7412200000 
Name Code
06078
FIIG
A080B0
QUP
Historical Price
$1.00 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
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. 300X2 Cage 01276
2. 2-2 040101B Cage 81343
3. 42IFHD-2 Cage 93061
4. 300X2 Cage 79470

Major End Users Countries and entities

  • - Department of The Army 
  • - Department of The Navy 
  • - Department of The Air Force 
  • - Canada 

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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
Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater 
Commodity (for shipments via water)
Metal and metal products, nos, (less than 35 feet) 
NMFC (national motor freight code)
052185 PIPE,TUBING,OR PIPE OR TUBING FIT 
UFC (universal freight code)
29950 

Similar by Design Other couplings with similar characteristics

Nothing similar to this part number was found in our inventory

J5121 / Coupling,tubeWhat is the formal definition of this item?

A straight fitting 12 inches (304 mm) long or under having the same or different type of connection of the same size on both ends. it is designed to join a tube or tube fitting to another tube or tube fitting. excludes fittings with threaded external connections on both ends. excludes nipple, pipe.