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National Stock Number:
5305-01-215-9810
Federal Supply Class:
5305
National Item Identification Number:
012159810
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:
| 75D271001-2005 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| FASTENER LENGTH | 1.200 INCHES NOMINAL | | HEAD DIAMETER | 1.000 INCHES NOMINAL | | HEAD HEIGHT | 0.550 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL | COPPER ALLOY OVERALL | | NOMINAL THREAD DIAMETER | 1.000 INCHES | | POINT STYLE | POINTLESS | | SHOULDER DIAMETER | 0.867 INCHES MINIMUM AND 0.877 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.236 INCHES MINIMUM AND 0.251 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SPECIAL FEATURES | WITH UNTHREADED CONCENTRIC HOLE ALONG LONGTUDINAL AXIS FROM TOP OF HEAD TO BOLT END | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | PS13001,FSC-76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.049 INCHES MINIMUM AND 1.200 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 12 | | THREAD SERIES DESIGNATOR | UNF |
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