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National Stock Number:
5305-00-448-7367
Federal Supply Class:
5305
National Item Identification Number:
004487367
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:
| 44116 | 96027 | NORTHWESTERN TOOLS INC. | | 873680 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | H123 | 96027 | NORTHWESTERN TOOLS INC. |
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Techincal Specification:
| FASTENER LENGTH | 4.188 INCHES MINIMUM AND 4.250 INCHES MAXIMUM | | HEAD DIAMETER | 1.000 INCHES NOMINAL | | HEAD HEIGHT | 0.375 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL | STEEL COMP 1213 OVERALL | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | POINT LENGTH | 0.344 INCHES NOMINAL | | POINT STYLE | BALL | | POINT DIAMETER | 0.394 INCHES NOMINAL | | SPECIAL FEATURES | POINT GROOVE TO ACCOMMODATE RETAINING SPRING,FURNISHED W/ONE RETAINING SPRING | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AISI ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 3.094 INCHES MINIMUM AND 3.156 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 13 |
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