139JA3

139JA3 Plain Hexagon Nut

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Datasheet. 139JA3 specification

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

2b

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

Nut Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.

hexagon

Nut Height

0.239in. and 0.257in. ⁓17/64"

Width Across Flats
The shortest straight line between flats,perpendicular to the height.

0.607in. and 0.625in. ⁓5/8"

Thread Series
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.

unc

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

18

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

0.312in. ⁓5/16"

Bearing Surface Type
Indicates the type of bearing surface.

chamfered or washer faced

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

steel

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.

2 type and 13 style

Answers.

What material is the plain hexagon nut made of ?

Steel

What is the thread quantity per inch?

18

What is the thread direction?

Right-hand

What is the thread class?

2b

What is the NSN for 139JA3?

5310-00-266-0386

How is this classified for shipping?

Schedule B number: 7318160000
Nuts of iron or steel

What's the federal classification of 139JA3?

FSC 5310 ⁓ Nuts and washers

Note-nuts and washers, including specially designed, are to be classified in this fsc. a. nuts are a small metal block made in a variety of shapes such as square and hexagonal which is drilled and internally threaded. b. washers are a perforated piece of metal, leather, or other materials of various shapes or forms. they are used primarily as a seat for a bolt, nut, screw, rivet or nail to distribute pressure and prevent endwise motion over an area and/or to prevent movement between two parts by means of restraining features created by the shape of its edges.

Excluding bearing thrust washers (fsc 3120); shims (fsc 5365); ring spacers (fsc 5365); plate spacers (fsc 5365); lock rings (fsc 5365).

NSN 5310-00-266-0386 NUT,PLAIN,HEXAGON

18 thread quantity per inch right-hand 2b thread class

NIIN
002660386
NIIN Date
01/01/63
Schedule B
7318160000 
Name Code
01857
FIIG
A021A0
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. FFN836 Cage 81348
2. 395JA3 Cage 30760
3. J3-139 Cage 30760
4. X80T27 Cage 30760

Major End Users Countries and entities

  • - Bureau of Mines 
  • - Government Printing office 
  • - General Services Administration 

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Similar by Design Other nuts with similar characteristics

Nothing similar to this part number was found in our inventory

139JA3 / Nut,plain,hexagonWhat is the formal definition of this item?

A nut, flat on top and bottom having 6 flat sides. for items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. see also locknut, tube fitting. for items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)