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Datasheet. FTD7146HS-12-2-8-9 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a
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
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.
0.541in. and 0.577in. ⁓37/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
double chamfer
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.365in. and 0.375in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.244in. and 0.250in. ⁓1/4"
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
hexagon
The national stock number or the identification information of the end equipment for which the item is a part.
nimrod; nimrod MRA4
The thickness of the material to be accommodated.
0.120in. and 0.130in.
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.250in. ⁓1/4"
The shortest straight line between flats,perpendicular to the height.
0.187in. and 0.190in. ⁓13/64"
Those features,not otherwise specified,which may be required for proper functioning of the item.
sleeve
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
28
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
edm flaring captive screw
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.
SCREW-A286 cres with chemistry per AMS5731 or EQUIV-Heat treat to 140ski ; SLEEVE-300 series cres per QQ-S-763; retaining RING-17-7Ph cres per m IL-S-25043, AMS5528 or equiv; hold out feature retained in sleeve
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel corrosion resisting
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.
passivate
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-35 fed spec single treatment response
Characteristics or qualities of an item,not covered in any other requirement,which are considered essential information for one or more functions excluding nsn assignment.
installation tool part number is T547-12; captive screw edm flaring type with hold out feature
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.
Unf
Steel corrosion resisting
28
Double chamfer
Right-hand
3a
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
NSN 5305-01-574-7238 SCREW ASSEMBLY,PANEL
Used on nimrod;nimrod mra4. unf thread series passivate surface treated screw-A286 cres with chemistry per AMS5731 or equiv-heat treat to 140ski ; sleeve-300 series cres per qq-s-763; retaining ring-17-7ph cres per m il-s-25043, AMS5528 or equiv; hold out feature retained in sleeve edm flaring captive screw 28 thread quantity per inch double chamfer head style right-hand 3a thread class
- NIIN
- 015747238
- NIIN Date
- 06/08/09
- Schedule B
- 7318152000
- Name Code
- 33044
- FIIG
- A003B0
- DEMIL / ITAR
- USML/ITAR controlled item (Code: Q)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- --
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
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FTD7146HS-12-2-8-9 / 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.
