61255

61255 Thumbscrew

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Datasheet. 61255 specification

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

3a

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

Thread Length
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.

0.450in. ⁓29/64"

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.

0.770in. ⁓25/32"

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

thumb no. 1

Head Height
A measurement from the bottom to the top of the head,in distinction from depth.

0.200in. ⁓13/64"

Width Between Flats

0.500in.

Point Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the point.

flat

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

0.138in. (UTS #6)

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

32

Shoulder Shape
The physical configuration of the unthreaded portion of a body adjacent to the head which is larger than the diameter of the shank.

round all shoulders

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.

3rd shoulder 0.148 in. dia by 0.029 in. lg, 4th shoulder 0.188 in. dia by 0.031 in. lg

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

steel comp 303se

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-18732 mil spec single material response

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.

unc

Answers.

What class is the thread series?

Unc

What material is the thumbscrew made of ?

Steel comp 303se

What is the thread quantity per inch?

32

What is the head style?

Thumb no. 1

What is the thread length?

0.450 inches minimum

What is the thread direction?

Right-hand

What is the thread class?

3a

What is the NSN for 61255?

5305-00-061-1987

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 61255?

FSC 5305 ⁓ Screws

NSN 5305-00-061-1987 THUMBSCREW

unc thread series 3rd shoulder 0.148 in. dia by 0.029 in. lg, 4th shoulder 0.188 in. dia by 0.031 in. lg 32 thread quantity per inch thumb no. 1 head style 0.450" thread length right-hand 3a thread class

NIIN
000611987
NIIN Date
06/20/67
Schedule B
7318152000 
Name Code
06673
FIIG
A003B0
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Major End Users Countries and entities

  • - Turkey 

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Similar by Design Other thumbscrews with similar characteristics

Nothing similar to this part number was found in our inventory

61255 / ThumbscrewWhat is the formal definition of this item?

An externally threaded fastener whose threaded portion is of one nominal diameter. it may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. it has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. for items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).