Part Number 20640-A

Hexagon Plain Nut

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Part Number
DEMIL
Shelf Life
UOM
NIIN
Part:
20640-a
Demil:
No
Shelf Life:
UOM:
NIIN:
009146901
NSN
National Stock Number:
5310-00-914-6901 5310009146901
TXT
Description:
Hexagon Plain Nut
INC
INC
Item Name Code:
01857
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:
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.ACTA
Nut Style:
Hexagon
MRC:
None.ADEA
Nut Height:
0.484 inches
MRC:
The shortest straight line between flats,perpendicular to the height.ASDB
Width Across Flats:
0.875 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:
Unc
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):
13
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:
Zzzy
MRC:
Indicates the type of bearing surface.CRTM
Bearing Surface Type:
Washer faced
MRC:
Designates the specific roughness rating of the bearing surface,representing the arithmetic average deviation of the surface from the meanline in profile.CSXL
Bearing Surface Finish:
125.0 microinches
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Cobalt alloy
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 material in accordance with activity hxquality control, manufacturing and testing specifications

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