259-2021-4-4

259202144 Straight Pipe To Tube Adapter

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Datasheet. 259-2021-4-4 specification

Nominal Pipe Size Accommodated
A measurement of the pipe size the item will accommodate.

0.250in. 1st end

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

2b 2nd end

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

3b 1st end

Seat Type
Indicates the type of seat in the item.

beveled

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

support equipment B-2 bomber

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

flared (tube) 2nd end

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

gasket seal compression (pipe) 1st end

Connection Type
Indicates the type of connection/s/.

threaded external pipe 1st end

Connection Type
Indicates the type of connection/s/.

threaded external tube 2nd end

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

18 1st end

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

20 2nd end

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

0.250in. 1st end ⁓1/64"

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

0.437in. 2nd end ⁓2-1/64"

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

37.0 degrees 2nd end

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.

0.250in. 2nd end

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

1.420in.

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

steel comp 316

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.

npt 1st end

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.

unf 2nd end

Answers.

What quantity is this sold in?

1EA

What class is the thread series?

Unf 2nd end

What class is the thread series?

Npt 1st end

What material is the straight pipe to tube adapter made of ?

Steel comp 316

What is the thread quantity per inch?

20 2nd end

What is the thread quantity per inch?

18 1st end

What is the thread class?

3b 1st end

What is the thread class?

2b 2nd end

What is the NSN for 259-2021-4-4?

4730-01-466-1029

How is this classified for shipping?

Schedule B number: 7307994000
nmfc 051010
Other fittings nesoi of alloy steel not stainless

What's the federal classification of 259-2021-4-4?

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 4730-01-466-1029 ADAPTER,STRAIGHT,PIPE TO TUBE

Used on support equipment b-2 bomber. unf 2nd end thread series 20 2nd end thread quantity per inch 3b 1st end thread class

NIIN: 014661029
NIIN Date: 07/07/99
Schedule B: 7307994000
Name Code: 03776
FIIG: A080B0
Item Weight: 0.100lbs
Item Dimensions: --
QUP: 1
Historical Price: $11.93 EA
DEMIL / ITAR: Uncontrolled item (Code A)
Hazmat: No hazard information available from HMIRS.
MSDS: N/A
Precious Metals: No precious metals
Enviromental: N/A
Electrostatic ESD & EMI: No ESD or EMI sensitivity

Major End Users Countries and entities

- Department of The Air Force
- Department of The Navy
- Greece

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Shipping Information

Special Handling: Other or no special handling required (sh)
LTL (less than a truck load rating): 65.0
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: Engineer supplies, other than those listed under code b.
Commodity (for shipments via water): Plumbing supplies
NMFC (national motor freight code): 051010 COUPLINGS CONDUIT R PIPE
UFC (universal freight code): 29420

Similar by Design Other adapters with similar characteristics

Nothing similar to this part number was found in our inventory

259-2021-4-4 / Adapter,straight,pipe to tubeWhat is the formal definition of this item?

An adapter having standard pipe threads on one end or an unthreaded end designed to accommodate a pipe. the other end has machine threads (straight threads other than pipe or hose series) designed to accommodate a tube or is unthreaded and designed to accommodate a tube. it is designed to join a pipe or pipe fitting to a tube or tube fitting in a straight line.