Part Number
DEMIL
Shelf Life
UOM
NIIN
NSN
National Stock Number:
TXT
Description:
Spline Self-locking Nut
MRC:
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD
Thread Class:
2b
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:
An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.AAUM
Locking Feature:
Prevailing torque all metal design
MRC:
The length of a straight line which passes through the center of that portion used to guide the item and terminates at the circumference.AAVL
Pilot Diameter:
Between 0.717 inches and 0.725 inches
MRC:
The length of the pilot,which is the unthreaded portion beyond the thread used to guide the item.AAVM
Pilot Length:
Between 0.220 inches and 0.225 inches
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:
0.253 inches nut and 0.263 inches nut
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.ACTA
Nut Style:
Spline
Nut Diameter:
Between 0.869 inches and 0.879 inches
Nut Height:
Between 0.426 inches and 0.438 inches
MRC:
The measurement of the enlarged portion adjacent to the threaded portion of a nut,in distinction from height.ADFK
Nut Counterbore Depth:
0.015 inches nut and 0.021 inches nut
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:
Unc
MRC:
Those features,not otherwise specified,which may be required for proper functioning of the item.CBBL
Features Provided:
Casehardened
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):
20
MRC:
A designation that is used for the purpose of general identification of the thread.CQJX
Thread Size:
0.250 inches
MRC:
The included angle of the countersink.CRSQ
Countersink Angle:
120.0 degrees nut
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Steel comp 1211 or steel comp 1212 or steel comp 1213 or steel comp 12l14
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:
Qq-s-637 federal 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 and chromate
