7/16-20UNC-2B

71620UNC2B Plain Hexagon Nut

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Datasheet. 7/16-20UNC-2B 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

0.365in. and 0.385in. ⁓25/64"

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

0.675in. and 0.688in. ⁓45/64"

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.

20

Hardness Rating
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.

25.0 rockwell c and 34.0 rockwell c

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

0.4375in. ⁓29/64"

Bearing Surface Type
Indicates the type of bearing surface.

chamfered

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

steel

Specification/standard Data
The document designator of the specification or standard which established the item of supply.

81349-MIL-S-1222 government specification

Answers.

What material is the plain hexagon nut made of ?

Steel

What is the thread quantity per inch?

20

What is the thread direction?

Right-hand

What is the thread class?

2b

What is the NSN for 7/16-20UNC-2B?

5310-01-447-6373

How is this classified for shipping?

Schedule B number: 7318160000
nmfc 093470
Nuts of iron or steel

What's the federal classification of 7/16-20UNC-2B?

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 5310-01-447-6373 NUT,PLAIN,HEXAGON

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

NIIN
014476373
NIIN Date
08/12/97
Schedule B
7318160000 
Name Code
01857
FIIG
A021A0
QUP
 
Historical Price
$0.88 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

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

1. 122-2404638 PC 42 Cage 80064
2. 701-4323702 P/N 10 Cage 53711

Major End Users Countries and entities

  • - Department of The Navy 

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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)
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
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)
093470 BOLTS/NUTS I/S 
UFC (universal freight code)
48940 

Similar by Design Other nuts with similar characteristics

Nothing similar to this part number was found in our inventory

7/16-20UNC-2B / 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.)