KFN591-4

KFN5914 Hexago Extended Washer Plain Nut
Home » Catalog » Nuts & Washers (p. 588) » Hexago Extended Washer Plain Nuts (p. 7) » Part Number KFN591-4

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Datasheet. KFN591-4 specification

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

3b

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

Washer Outside Diameter

0.425in.

Lubrication
A substance designed to provide a reduction of friction between the two surfaces in contact.

dry film lubricant

Overall Height
The distance measured in a straight line from the bottom to the top of an item.

0.315in.

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

hexagon

Washer Thickness

0.087in. and 0.097in.

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

CL-215, aircraft

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

0.305in. and 0.313in. ⁓21/64"

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

unjc

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

28

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

0.250in. ⁓1/4"

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

aluminum alloy 7075

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.

QQ-A-225/9 fed spec single material response

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 surface(s) and cannot be wiped off.

anodize

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 surface treatment material.

MIL-H-6088 mil spec single treatment response

Answers.

What material is the hexago extended washer plain nut made of ?

Aluminum alloy 7075

What is the thread quantity per inch?

28

What is the thread direction?

Right-hand

What is the thread class?

3b

What is the NSN for KFN591-4?

5310-01-513-9858

How is this classified for shipping?

Schedule B number: 7616995095
Articles of aluminum nesoi

What's the federal classification of KFN591-4?

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 5310-01-513-9858 NUT,PLAIN,EXTENDED WASHER,HEXAGO

Used on cl-215, aircraft. anodize surface treated 28 thread quantity per inch right-hand 3b thread class

NIIN
015139858
NIIN Date
10/10/03
Schedule B
7616995095 
Name Code
04889
FIIG
A021A0
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

Other Part Numbers Parts with same form, fit, and function by other manufacturers

Major End Users Countries and entities

  • - Spain 

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Similar by Design Other nuts with similar characteristics

Nothing similar to this part number was found in our inventory

KFN591-4 / Nut,plain,extended washer,hexagoWhat is the formal definition of this item?

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.