Part Number 290-4D

Tube Coupling Nut
Description

Nut: couplingal

Pricing & Availability

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Part Number
DEMIL
Shelf Life
UOM
NIIN
Part:
290-4d
Demil:
No
Shelf Life:
UOM:
NIIN:
002870289

Part Information
Weapon system essential. Grumman a-10 aircraft

NSN
National Stock Number:
4730-00-287-0289 4730002870289
TXT
Description:
Tube Coupling Nut
INC
INC
Item Name Code:
03859
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:
The process used in manufacturing the item.AARN
Fabrication Method:
Any acceptable
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.ACTA
Nut Style:
Tube coupling
MRC:
None.ADEA
Nut Height:
0.620 inches
MRC:
The national stock number or the identification information of the end equipment for which the item is a part.AGAV
End Application:
B-1 aircraft support equipment. B-52 aircraft support equipment. Tf33-p-3/5/9 (c/ec-135, b-52h) aircraft engine. H-3 helicopter support equipment.
MRC:
The shortest straight line between flats,perpendicular to the height.ASDB
Width Across Flats:
0.563 inches
MRC:
None.BRQL
Length To Shoulder:
0.532 inches
MRC:
The smallest length of a straight line which passes through the center of the two surfaces of a circular item,and terminates at the inside circumference.BSPX
Smallest Inside Diameter:
0.305 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:
Unf
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:
0.438 inches
MRC:
The nominal length of a straight line which passes through the center of a tube,and terminates at the outside circumference.CQRJ
Tube Outside Diameter:
0.250 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:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Aluminum alloy
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:
Anodize

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