Part Number
DEMIL
Shelf Life
UOM
NIIN
Part Information
Nut, self-locking, castellated, hexagon counterbored, assembled washer, 250 degree f, non-metallic inser (for self-retaining bolts)
NSN
National Stock Number:
TXT
Description:
Assembled Washe Self-locking 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:
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 with nonmetallic insert
Washer Outside Diameter:
0.840 inches
MRC:
The distance measured in a straight line from the bottom to the top of an item.ABKW
Overall Height:
Between 0.546 inches and 0.576 inches
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.ACTA
Nut Style:
Flat with turned back edge
MRC:
The shortest straight line between flats,perpendicular to the height.ASDB
Width Across Flats:
Between 0.741 inches and 0.752 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):
20
MRC:
A designation that is used for the purpose of general identification of the thread.CQJX
Thread Size:
0.500 inches
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:
Feat
MRC:
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.FEAT
Special Features:
Surface finish shall not exceed 125 microinches; nut is red in color; ultimate tensile strength is 5600 lbs.Min
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Aluminum alloy 2024 and aluminum alloy 7075 washer
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Plastic nylon locking insert
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Steel comp 1137 nut
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-a-250 and qq-a-225 federal specification 1st material response and qq-a-250 federal specification 2nd material response washer
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:
Ams 5024 uns g11370 (aisi 1137) national std/spec single material response nut
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 nut
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:
Chromate washer
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:
Alodine per mil-c-5541 military specification single treatment response washer
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:
Qq-p-416, ty ii, cl 2 federal specification single treatment response nut
MRC:
The document designator of the specification or standard which established the item of supply.ZZZK
Specification Data:
80205-nas-21224 professional/industrial association standard
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 color; airworthy certificated item supplied with provenance & traceability documentation
