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National Stock Number:
5305-01-161-6182
Federal Supply Class:
5305
National Item Identification Number:
011616182
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:
| 74D291013-2039 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| FASTENER LENGTH | 3.680 INCHES NOMINAL | | HEAD DIAMETER | 2.000 INCHES NOMINAL | | HEAD HEIGHT | 1.000 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 4 | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4340 OVERALL | | POINT STYLE | FULL DOG | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.625 INCHES | | SHOULDER DIAMETER | 1.000 INCHES NOMINAL FIRST SHOULDER | | SHOULDER LENGTH | 1.362 INCHES NOMINAL FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SPECIAL FEATURES | FURNISHED WITH ONE 0.125 IN. MIN 0.129 IN. MAX DIA HOLE 0.812 IN. FROM THREADS | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.098 INCHES MINIMUM AND 1.113 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNF |
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