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National Stock Number:
5305-00-968-6139
Federal Supply Class:
5305
National Item Identification Number:
009686139
Description:
THUMBSCREW
Detail:
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).
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Manufacturer Information:
| 5088 | 06540 | NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV | | A1070-88 | 08242 | ALLEN-BRADLEY CO ENCODER PRODUCTS UNIT INDUSTRIAL CONTROL DIV |
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Techincal Specification:
| FASTENER LENGTH | 0.406 INCHES NOMINAL | | HEAD DIAMETER | 0.500 INCHES NOMINAL | | HEAD HEIGHT | 0.313 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 2 | | MATERIAL | COPPER ALLOY OVERALL | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | POINT STYLE | FLAT | | SHOULDER DIAMETER | 0.375 INCHES NOMINAL FIRST SHOULDER | | SHOULDER LENGTH | 0.125 INCHES NOMINAL FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SURFACE TREATMENT | NICKEL OVERALL | | TEST DATA DOCUMENT | A1070-88-08242 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.406 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNC |
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