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NSN: 5310-00-001-1301
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Cross Reference

These part numbers have the same form, fit, and function of 74365-10
Item Number Cage
74365-10 56878
9237309 19203

Characteristic Codes

74365-10 spec. code meanings
Code Translation
AAJD A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
AAJF 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.
ABKW The distance measured in a straight line from the bottom to the top of an item.
ACTA The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.
ASDB The shortest straight line between flats, perpendicular to the height.
AZKQ A value which expresses the degree of heat or cold as applied to the operation, or limitation of operation, of an item.
BZRR A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.
CMLP The number of threads on the item per linear inch measured on a line parallel to the thread axis.
CQFM A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
CQJX A designation that is used for the purpose of general identification of the thread.
MATT The chemical compound or mechanical mixture properties of which the item is fabricated.
MDCL The specification, standard, or manufacturers reference, and the classification designation, such as class, condition, temper, and the like, that identifies the material.
SFTT 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.
STDC The specification, standard, or manufacturers reference, and the classification designation, such as type, class, grade, and the like, that identifies the surface treatment material.


Description: Plain Extended Washer Double Nut
Mfr. Cage 19203


Width across flats: 13/16", Thread Size: 5/8", steel comp 8630 overall

AAJD Thread Class
AAJF Thread Direction
AAVX Washer Outside Diameter
1.245 inches
ABKW Overall Height
0.700 inches
ACTA Nut Style
Double hexagon
ADEM Washer Thickness
0.175 inches
ASDB Width Across Flats
From 0.803" and 0.814"
AZKQ Temp Rating
550.0 deg fahrenheit
BZRR Thread Series
CMLP Thready Qty Per Inch (tpi)
CQFM Hardness Rating
From 32.0 rockwell c and 36.0 rockwell c
CQJX Nominal Thread Size
0.625 inches
MATT Material
Steel comp 8630
MDCL Material Spec
Ams 6280 assn std single material response
SFTT Surface Treatment
STDC Surface Treatment Spec
Qq-p-416,ty 2,cl 3 fed spec single treatment response

Technical Definition

Nut, Plain, Extended Washer, Double, also referenced with federal logistics item name code 04888 - A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery.
National Stock Number (NSN): 5310-00-001-1301

Last Modified: 02/14/2017