18S01-4-1AA

18S0141AA Panel Screw Assembly

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Datasheet. 18S01-4-1AA specification

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

3b

Thread Direction
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.

RIGHT-Hand

Fastener Length
The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.

0.800in. ⁓13/16"

Head Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.

flat countersunk

Head Diameter
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.

0.358in.

Internal Drive Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.

hexagon

Nominal Thread Diameter
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.

0.164in. (UTS #8)

Width Across Flats
The shortest straight line between flats,perpendicular to the height.

0.157in. and 0.159in. ⁓11/64"

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

36

Countersink Angle
The included angle of the countersink.

100.0 degrees

Part Name Assigned By Controlling Agency
The name assigned to the item by the government agency or commercial organization controlling the design of the item.

stud assembly, flush

Lead Thread Quantity
The number of lead threads (helixes) that start at the end of the screw.

four

Special Features
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.

recess plug depth 0.130 - 0.150in.; stud dia 0.247 - 0.249in.; interior threads

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel comp 8740

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

MIL-S-6049 mil spec all material responses

Surface Treatment
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.

cadmium

Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.

QQ-P-416, TY2 CL2 fed spec all treatment responses

Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

unf

Answers.

What class is the thread series?

Unf

What material is the panel screw assembly made of ?

Steel comp 8740

What is the thread quantity per inch?

36

What is the head style?

Flat countersunk

What is the thread direction?

Right-hand

What is the thread class?

3b

What is the NSN for 18S01-4-1AA?

5305-01-553-3542

How is this classified for shipping?

Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment

What's the federal classification of 18S01-4-1AA?

FSC 5305 ⁓ Screws

NSN 5305-01-553-3542 SCREW ASSEMBLY,PANEL

unf thread series cadmium surface treated recess plug depth 0.130 - 0.150"; stud dia 0.247 - 0.249"; interior threads stud assembly, flush 36 thread quantity per inch flat countersunk head style right-hand 3b thread class

NIIN
015533542
NIIN Date
07/13/07
Schedule B
7318152000 
Name Code
33044
FIIG
A003B0
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
No precious metals
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Major End Users Countries and entities

  • - Romania 
  • - Australia 
  • - Italy 

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Nothing similar to this part number was found in our inventory

18S01-4-1AA / Screw assembly,panelWhat is the formal definition of this item?

A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. attached to panel by threaded bushing or by flaring end of stand-off, or bushing. used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. may be spring loaded.