91251A560

91251A560 Cap Socket Head Screw

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Datasheet. 91251A560 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.

1.125in. ⁓1-1/8"

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.

1.125in. ⁓1-1/8"

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

flat fillister

Head Diameter
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.

0.375in.

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

0.25in. ⁓1/4"

Internal Drive Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.

hexagon

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

5411015757079

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"

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

0.1875in. ⁓13/64"

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

20

Minimum Tensile Strength
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.

180000 pounds per square inch

Special Features
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.

BLACK-Oxide finish

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

steel

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.

unc

Answers.

What class is the thread series?

Unc

What material is the cap socket head screw made of ?

Steel

What is the thread quantity per inch?

20

What is the head style?

Flat fillister

What is the thread length?

1.125 inches

What is the thread direction?

Right-hand

What is the thread class?

3a

What is the NSN for 91251A560?

5305-01-602-2199

How is this classified for shipping?

Schedule B number: 7318152000
nmfc 096640
Bolts and bolts and their nuts or washers exported in the same shipment

What's the federal classification of 91251A560?

FSC 5305 ⁓ Screws

NSN 5305-01-602-2199 SCREW,CAP,SOCKET HEAD

Used on 5411015757079. unc thread series black-oxide finish 20 thread quantity per inch flat fillister head style 1.125" thread length right-hand 3a thread class

NIIN
016022199
NIIN Date
01/27/12
Schedule B
7318152000 
Name Code
16282
FIIG
A003B0
Item Weight
0.000lbs
Item Dimensions
1 X 1 X 1
QUP
 
Historical Price
$8.48 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

  • - U.s. Marine Corps 

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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)
Bolts or nuts (iron or steel),(less than 35 feet) 
NMFC (national motor freight code)
096640 SCREWS, IRON OR STEEL 
UFC (universal freight code)
50600 

Similar by Design Other screws with similar characteristics

Nothing similar to this part number was found in our inventory

91251A560 / Screw,cap,socket headWhat is the formal definition of this item?

An externally threaded fastener whose threaded portion is of one nominal diameter. the head has an internal socket or multiple spline for use with an inserted driver. a locking feature may be incorporated in the design of the head or threads. excludes items with bevel (conical) heads. see bolt, internal wrenching. excludes screw, shoulder; and screw, machine.