4R8-316

4R8316 Tube Reducer
Home » Catalog » Fittings (p. 1429) » Tube Reducers (p. 23) » Part Number 4R8-316

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Datasheet. 4R8-316 specification

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

2a 1st end

Reducer Type
Refers to the location of the ends whether on the same centerline (concentric) or on different centerlines (eccentric).

concentric

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

flareless (tube) 1st end

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

plain (tube) 2nd end

Connection Type
Indicates the type of connection/s/.

threaded external tube 1st end

Connection Type
Indicates the type of connection/s/.

threaded external tube 2nd end

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

0.438in. 1st end ⁓1/64"

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

20.0 degrees 1st 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. 1st 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.

0.500in. 2nd end

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

1.828in.

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

steel comp 316 body

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

steel comp 316 nut

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

astm A276 uns S31600 assn std single material response body

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

astm A276 uns S31600 assn std single material response nut

Media For Which Designed
The type of media for which the item is designed.

fluid single response

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 1st end

Furnished Items And Quantity
The name and number of those parts furnished with the item of supply that have not been specified elsewhere.

1 nut with sleeve

Answers.

What class is the thread series?

Unf 1st end

What material is the tube reducer made of ?

Steel comp 316 nut

What material is the tube reducer made of ?

Steel comp 316 body

What is the thread class?

2a 1st end

What is the NSN for 4R8-316?

4730-01-270-1010

How is this classified for shipping?

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

What's the federal classification of 4R8-316?

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 4730-01-270-1010 REDUCER,TUBE

unf 1st end thread series 2a 1st end thread class

NIIN
012701010
NIIN Date
12/29/87
Schedule B
7307994000 
Name Code
08506
FIIG
A080B0
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
--
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

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Similar by Design Other reducers with similar characteristics

Nothing similar to this part number was found in our inventory

4R8-316 / Reducer,tubeWhat is the formal definition of this item?

A straight tube fitting having a different size connection on each end. it is designed to join two tubes of different sizes. excludes bushing (as modified).