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NSN: 5310-00-001-1301
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Part Numbers

Item Number Item Description
74365-10 Nut, Plain, Extended Washer, Double
9237309 Nut, Plain, Extended Washer, Double

Master Requirement Codes

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

9237309 Plain Extended Washer Double Nut

Cage 19203

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.

Technical Characteristics

Hardness Rating (CQFM):
32.0 rockwell c minimum and 36.0 rockwell c maximum
Material (MATT):
Steel comp 8630 overall
Nominal Thread Size (CQJX):
0.625 inches
Nut Style (ACTA):
Double hexagon
Overall Height (ABKW):
0.700 inches nominal
Material Document And Classification (MDCL):
Ams 6280 assn std single material response overall
Washer Outside Diameter (AAVX):
1.245 inches nominal
Washer Thickness (ADEM):
0.175 inches nominal
Width Across Flats (ASDB):
0.803 inches minimum and 0.814 inches maximum
Surface Treatment Document And Classification (STDC):
Qq-p-416,ty 2,cl 3 fed spec single treatment response overall
Surface Treatment (SFTT):
Cadmium overall
Temp Rating (AZKQ):
550.0 deg fahrenheit nominal
Thread Class (AAJD):
3b
Thread Direction (AAJF):
Right-hand
Thread Quantity Per Inch (CMLP):
18
Thread Series (BZRR):
Unjf

National Stock Number (NSN)

5310-00-001-1301