91253A540

91253A540 Cap Socket Head Screw

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Datasheet. 91253A540 specification

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

rc

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.

0.720in. ⁓47/64"

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.

0.750in. ⁓3/4"

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

flat countersunk

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

0.480in. and 0.531in.

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

hexagon

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.

0.156in. ⁓5/32"

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.

150000 pounds per square inch

Countersink Angle
The included angle of the countersink.

38.0 degrees and 44.0 degrees

Color
A characteristic of light that can be specified in terms of luminance,dominant wavelength,and purity.

black

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

iron alloy 660

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.

unrc

Answers.

What quantity is this sold in?

1HD

What class is the thread series?

Unrc

What material is the cap socket head screw made of ?

Iron alloy 660

What is the thread quantity per inch?

20

What is the head style?

Flat countersunk

What is the thread length?

0.720 inches

What is the thread direction?

Right-hand

What is the thread class?

Rc

What is the NSN for 91253A540?

5305-01-446-1336

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 91253A540?

FSC 5305 ⁓ Screws

NSN 5305-01-446-1336 SCREW,CAP,SOCKET HEAD

unrc thread series 20 thread quantity per inch flat countersunk head style 0.720" thread length right-hand rc thread class

NIIN
014461336
NIIN Date
06/24/97
Schedule B
7318152000 
Name Code
16282
FIIG
A003B0
Item Weight
0.000lbs
Item Dimensions
--
QUP
Historical Price
$56.95 HD
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. GS553BW4-12 Cage 26512

Major End Users Countries and entities

  • - Department of The Army 
  • - Department of The Air Force 
  • - Department of The Navy 
  • - 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)
Metal hardware 
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

91253A540 / 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.