J644P27A

J644P27A Machine Bolt

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Quality Commitment

Serving our customers with quality and safety first.

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  •   Audited supply chain
  •   ITAR Registered
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AS9120 Certified by SAI Global

Datasheet. J644P27A 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.

0.740in. and 0.820in. ⁓53/64"

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.

1.990in. and 2.010in. ⁓2-1/64"

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

double hexagon extended washer

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

0.293in. and 0.313in. ⁓21/64"

Width Between Flats

0.312in.

Extended Washer Diameter

0.428in. and 0.448in.

Extended Washer Thickness

0.060in. and 0.070in.

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

0.250in. ⁓1/4"

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

1.190in. and 1.250in.

Features Provided
Those features,not otherwise specified,which may be required for proper functioning of the item.

finished head

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

28

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

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

32.0 microinches threads

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

nickel alloy 718

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.

C50TF13 CL-B fscm 07482 mfr ref 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.

unjf

Answers.

What class is the thread series?

Unjf

What material is the machine bolt made of ?

Nickel alloy 718

What is the thread quantity per inch?

28

What is the grip length?

1.190 inches minimum and 1.250 inches maximum

What is the head style?

Double hexagon extended washer

What is the thread length?

0.740 inches minimum and 0.820 inches maximum

What is the thread direction?

Right-hand

What is the thread class?

3a

What is the NSN for J644P27A?

5306-01-165-7518

How is this classified for shipping?

Schedule B number: 7508900000
nmfc 139820
Other articles of nickel (excluding cloth, grill & netting of nickel wire)

What's the federal classification of J644P27A?

FSC 5306 ⁓ Bolts

NSN 5306-01-165-7518 BOLT,MACHINE

unjf thread series 28 thread quantity per inch 1.190" grip length double hexagon extended washer head style 0.740" thread length right-hand 3a thread class

NIIN
011657518
NIIN Date
11/03/83
Schedule B
7508900000 
Name Code
01847
FIIG
A003B0
Item Weight
0.000lbs
Item Dimensions
--
QUP
 
Historical Price
$68.98 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

Major End Users Countries and entities

  • - Department of The Air Force 
  • - Department of The Navy 
  • - Poland 
  • - Spain 
  • - Australia 
  • - Germany 
  • - Republic of Korea 
  • - Portugal 
  • - Italy 
  • - Greece 
  • - Turkey 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
85.0 
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)
139820 NICKEL BOLTS/NAILS/NUTS/RIVETS ETC 
UFC (universal freight code)
70220 

Similar by Design Other bolts with similar characteristics

Nothing similar to this part number was found in our inventory

J644P27A / Bolt,machineWhat is the formal definition of this item?

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. see also screw, cap, hexagon head and screw, machine.