3M33-7-13A

3M33713A Close Tolerance Bolt

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Datasheet. 3M33-7-13A specification

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

3a

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

Thread Length
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.

0.656in. ⁓21/32"

Fastener Length
The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.

1.578in. and 1.625in. ⁓1-5/8"

Head Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.

hexagon

Head Height
A measurement from the bottom to the top of the head,in distinction from depth.

0.234in. and 0.266in. ⁓17/64"

Width Between Flats

0.615in. and 0.627in.

Grip Diameter
The length of a straight line which passes through the center of the grip,and terminates at the circumference.

0.4362in. and 0.4367in.

Nominal Thread Diameter
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.

0.438in. ⁓29/64"

Grip Length
A measurement of the longest dimension of the grip,in distinction from width.

0.802in. and 0.822in.

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

20

Surface Finish
Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.

32.0 microinches grip

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

iron alloy 660

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.

ams 5735 assn std single material 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

Answers.

What class is the thread series?

Unf

What material is the close tolerance bolt made of ?

Iron alloy 660

What is the thread quantity per inch?

20

What is the grip length?

0.802 inches minimum and 0.822 inches maximum

What is the head style?

Hexagon

What is the thread length?

0.656 inches minimum

What is the thread direction?

Right-hand

What is the thread class?

3a

What is the NSN for 3M33-7-13A?

5306-00-882-9028

How is this classified for shipping?

Schedule B number: 7318152000
nmfc 093470
Bolts and bolts and their nuts or washers exported in the same shipment

What's the federal classification of 3M33-7-13A?

FSC 5306 ⁓ Bolts

NSN 5306-00-882-9028 BOLT,CLOSE TOLERANCE

unf thread series 20 thread quantity per inch 0.802" grip length hexagon head style 0.656" thread length right-hand 3a thread class

NIIN
008829028
NIIN Date
01/01/62
Schedule B
7318152000 
Name Code
27851
FIIG
A003B0
Item Weight
0.200lbs
Item Dimensions
--
QUP
 
Historical Price
$84.28 EA
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

Major End Users Countries and entities

  • - Department of The Navy 
  • - Department of The Air Force 
  • - U.s. Coast Guard 
  • - Germany 
  • - Republic of Korea 
  • - Greece 
  • - Turkey 

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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
Supplies and equipment for aircraft and aerial targets, including aircraft and maintenance parts, aircraft accessories, aircraft 
Commodity (for shipments via water)
Bolts or nuts (iron or steel),(less than 35 feet) 
NMFC (national motor freight code)
093470 BOLTS/NUTS I/S 
UFC (universal freight code)
48940 

Similar by Design Other bolts with similar characteristics

Nothing similar to this part number was found in our inventory

3M33-7-13A / Bolt,close toleranceWhat is the formal definition of this item?

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. the nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. the head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. for items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. for items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.