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Datasheet. 161120999 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.
3.250in. ⁓3-1/4"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
flat chamfer
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.468in.
An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.
patch locking feature
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
hexagon
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.3125in. ⁓21/64"
The shortest straight line between flats,perpendicular to the height.
0.250in. ⁓1/4"
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
18
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
screw, cap, socket head self locking 1960 series
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.
locking patch is NON-Metallic iaw MIL-F-18240; prevailing and breakaway torque valued listed in industrial fastener institute spec IFI-124 apply
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel fastener
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
FF-S-86 fed spec single material response fastener
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.
zinc fastener
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-Z-325, type ii, class 3 fed spec single treatment response fastener
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unc
Answers.
Unc
Steel fastener
18
Flat 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 5305-01-594-9193 SCREW,CAP,SOCKET HEAD
unc thread series zinc fastener surface treated locking patch is non-metallic iaw mil-f-18240; prevailing screw, cap, socket head self locking 1960 series 18 thread quantity per inch flat chamfer head style right-hand 3a thread class
- NIIN
- 015949193
- NIIN Date
- 04/25/11
- Schedule B
- 7318152000
- Name Code
- 16282
- 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
Other Part Numbers Parts with same form, fit, and function by other manufacturers
Major End Users Countries and entities
- - Republic of Korea
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161120999 / Screw,cap,socket headWhat is the formal definition of this item?
An externally threaded fastener whose threaded portion is of one nominal diameter. the head has an internal socket or multiple spline for use with an inserted driver. a locking feature may be incorporated in the design of the head or threads. excludes items with bevel (conical) heads. see bolt, internal wrenching. excludes screw, shoulder; and screw, machine.
