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Datasheet. 573A specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
1a
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.437in. and 0.447in. ⁓29/64"
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.
0.496in. and 0.506in. ⁓33/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
knurled no. 1
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.182in. and 0.192in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.088in. and 0.098in. ⁓7/64"
The length of the enlarged portion of the shank on the item,in distinction from width or diameter.
0.027in. first shoulder and 0.037in. first shoulder
The style designation indicating the configuration that most nearly corresponds to the appearance of the point.
flat
The physical configuration of the unthreaded portion of a body adjacent to the head which is larger than the diameter of the shank.
round first shoulder
Answers.
Knurled no. 1
0.437 inches minimum and 0.447 inches maximum
1a
FSC 5305 ⁓ Screws
NSN 5305-00-113-3764 THUMBSCREW
knurled no. 1 head style 0.437" thread length 1a thread class
- NIIN
- 001133764
- NIIN Date
- 09/30/68
- Schedule B
- Name Code
- 06673
- FIIG
- A003B0
- Item Weight
- 0.000lbs
- Item Dimensions
- --
- QUP
- Historical Price
- $5.03 EA
- 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
Other Part Numbers Parts with same form, fit, and function by other manufacturers
| 1. | 573B | Cage 80138 |
Major End Users Countries and entities
- - Spain
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573A / 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).
