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NSN: 5310-00-001-4765
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Cross Reference

These part numbers have the same form, fit, and function of a103ct
Item Number Cage
A103CT K7766

Characteristic Codes

A103CT 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.
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.
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.
CQJX A designation that is used for the purpose of general identification of the thread.
CRSQ The included angle of the countersink.
CRTM Indicates the type of bearing surface.
MATT The chemical compound or mechanical mixture properties of which the item is fabricated.


Description: Hexagon Plain Nut
Mfr. Cage K7766


Nut Height: 7/64", Width across flats: 5/16", Thread Size: 5/32", aluminum alloy overall or steel overall

AAJD Thread Class
AAJF Thread Direction
ACTA Nut Style
ADEA Nut Height
From 0.103" and 0.113"
ASDB Width Across Flats
From 0.307" and 0.312"
BZRR Thread Series
CMLP Thready Qty Per Inch (tpi)
CQJX Nominal Thread Size
0.164 inches
CRSQ Countersink Angle
90.0 degrees minimum nut and 120.0 degrees maximum nut
CRTM Bearing Surface Type
MATT Material
Aluminum alloy or steel

Technical Definition

Nut, Plain, Hexagon, also referenced with federal logistics item name code 01857 - A nut, flat on top and bottom having 6 flat sides. for items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. see also locknut, tube fitting. for items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
National Stock Number (NSN): 5310-00-001-4765

Last Modified: 02/14/2017