Part Number
DEMIL
Shelf Life
UOM
NIIN
NSN
National Stock Number:
TXT
Description:
Hexagon Castellated Plain Nut
MRC:
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD
Thread Class:
3b
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:
The length of a straight line which passes through the center of a counterbored portion of a hole,and terminates at the circumference.AAWY
Counterbore Diameter:
0.265 inches nut and 0.275 inches nut
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.ACTA
Nut Style:
Castellated, hexagon
Nut Height:
Between 0.408 inches and 0.428 inches
MRC:
The measurement of the enlarged portion adjacent to the threaded portion of a nut,in distinction from height.ADFK
Nut Counterbore Depth:
0.148 inches nut and 0.168 inches nut
MRC:
The shortest straight line between flats,perpendicular to the height.ASDB
Width Across Flats:
Between 0.428 inches and 0.440 inches
MRC:
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.BZRR
Thread Series:
Unjf
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):
28
MRC:
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.CQFM
Hardness Rating:
94.0 rockwell b
MRC:
A designation that is used for the purpose of general identification of the thread.CQJX
Thread Size:
0.250 inches
MRC:
Indicates the type of bearing surface.CRTM
Bearing Surface Type:
Chamfered
MRC:
Designates the specific roughness rating of the bearing surface,representing the arithmetic average deviation of the surface from the meanline in profile.CSXL
Bearing Surface Finish:
125.0 microinches
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Steel comp 4130
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:
Mil-s-6758 military specification single material response
MRC:
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.SFTT
Surface Treatment:
Cadmium
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.STDC
Surface Treatment Specification:
Ss8488, fscm 78286 mfr ref single treatment response
