MRC:
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD
Thread Class:
3a
MRC:
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.AAJF
Thread Direction:
Right-hand
MRC:
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.AASA
Thread Length:
Between 0.090 inches and 0.110 inches
MRC:
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.AASB
Fastener Length:
4.000 inches
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.AASK
Head Style:
Button
MRC:
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.AASL
Head Diameter:
Between 0.853 inches and 0.875 inches
MRC:
A measurement from the bottom to the top of the head,in distinction from depth.AASU
Head Height:
Between 0.365 inches and 0.375 inches
MRC:
The length of a straight line which passes through the center of the shoulder and terminates at the circumference.AATN
Shoulder Diameter:
0.621 inches fastener and 0.623 inches fastener
MRC:
The length of a straight line which passes through the center of the shoulder and terminates at the circumference.AATN
Shoulder Diameter:
0.621 inches and 0.623 inches
MRC:
The length of the enlarged portion of the shank on the item,in distinction from width or diameter.AATX
Shoulder Length:
3.245 inches grip and 3.250 inches grip
MRC:
The length of a straight line which passes through the center of a hole,and terminates at the circumference.AAUB
Hole Diameter:
Between 0.061 inches and 0.067 inches
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.ABQZ
Internal Drive Style:
Hexagon
MRC:
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.AHYM
Thread Diameter:
0.500 inches
MRC:
The shortest straight line between flats,perpendicular to the height.ASDB
Width Across Flats:
Between 0.312 inches and 0.316 inches
MRC:
The number of holes provided.ASXK
Hole Quantity:
1
MRC:
Indicates the type of hole(s) provided in the item.BQDM
Hole Type:
Drilled
MRC:
The number of threads on the item per linear inch measured on a line parallel to the thread axis.CMLP
Thready Qty Per Inch (tpi):
13
MRC:
The style designation that most nearly corresponds to the appearance of the hole configuration.CRHC
Hole Configuration Style:
Round
MRC:
The master requirement codes of those requirements which are technically critical by reason of tolerance,fit,performance,or other characteristics which affect identification of the item.CRTL
Criticality Code Justification:
Zzzy
MRC:
The physical configuration of the unthreaded portion of a body adjacent to the head which is larger than the diameter of the shank.CWYB
Shoulder Shape:
Round grip
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Steel uns k03104
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.MDCL
Material Specification:
Astm a 574 assn standard single material response
MRC:
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.THSD
Thread Series Designator:
Unc
MRC:
A feature of the item of supply which must be specifically recorded when the reference number covers a range of items.ZZZY
Reference Number Differentiating Characteristics:
As differentiated by material which must conform to ships parts control center special quality control provisions
