20289

20289 Plain Square Nut

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Datasheet. 20289 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.

square

Nut Height

0.057in. and 0.066in. ⁓5/64"

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

0.180in. and 0.187in. ⁓3/16"

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.

56

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

0.086in. ⁓3/32"

Bearing Surface Type
Indicates the type of bearing surface.

flat

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

copper alloy 360

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-B-626 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.

cadmium

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.

QQ-P-416, ty 2, cl 3 fed spec single treatment response

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.

b type and 22 table

Answers.

What material is the plain square nut made of ?

Copper alloy 360

What is the thread quantity per inch?

56

What is the thread direction?

Right-hand

What is the thread class?

2b

What is the NSN for 20289?

5310-00-596-8202

How is this classified for shipping?

Schedule B number: 7415290000
nmfc 093460
Copper screws, nuts, bolts, rivets, and other fasteners not threaded

What's the federal classification of 20289?

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 5310-00-596-8202 NUT,PLAIN,SQUARE

cadmium surface treated 56 thread quantity per inch right-hand 2b thread class

NIIN
005968202
NIIN Date
01/01/63
Schedule B
7415290000 
Name Code
01858
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. MILS933TYPEB Cage 81349
2. MILS933TYPEB Cage 81349
3. MILS933TYPEB Cage 81349

Major End Users Countries and entities

  • - Greece 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
70.0 
LCL (less than a car load rating)
70.0
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 hardware 
NMFC (national motor freight code)
093460 BOLTS/NUTS NOI BBC/ZINC 
UFC (universal freight code)
48930 

Similar by Design Other nuts with similar characteristics

Nothing similar to this part number was found in our inventory

20289 / Nut,plain,squareWhat is the formal definition of this item?

A nut, flat on top and bottom, having 4 flat sides. 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.)