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National Stock Number:
5305-01-418-3423
Federal Supply Class:
5305
National Item Identification Number:
014183423
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:
| 152-55 | 35918 | HORIZON AEROSPACE LLC DBA MAGNETICS DIVISION |
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Techincal Specification:
| FASTENER LENGTH | 1.166 INCHES NOMINAL | | HEAD DIAMETER | 0.187 INCHES NOMINAL | | HEAD HEIGHT | 0.184 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 5 | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5636 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5640 ASSN STD 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 302 OR STEEL COMP 303SE OVERALL | | NOMINAL THREAD DIAMETER | 0.125 INCHES | | POINT DIAMETER | 0.100 INCHES NOMINAL | | POINT LENGTH | 0.031 INCHES NOMINAL | | POINT STYLE | FLAT | | POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL | | SHOULDER DIAMETER | 0.140 INCHES NOMINAL SECOND SHOULDER | | SHOULDER DIAMETER | 0.250 INCHES NOMINAL FIRST SHOULDER | | SHOULDER SHAPE | ROUND ALL SHOULDERS | | SHOULDER LENGTH | 0.485 INCHES NOMINAL SECOND SHOULDER | | SHOULDER LENGTH | 0.400 INCHES NOMINAL FIRST SHOULDER | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.187 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 44 | | THREAD SERIES DESIGNATOR | UNF |
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