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National Stock Number:
5305-01-597-3375
Federal Supply Class:
5305
National Item Identification Number:
015973375
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:
| 55000529 | 0F875 | GENERAL DYNAMICS ORDNANCE AND TACTICAL SYSTEMS, INC. | | 99607A120 | 3A054 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| FASTENER LENGTH | 0.500 INCHES NOMINAL | | HARDNESS RATING | 65.0 ROCKWELL B MINIMUM OVERALL | | HEAD DIAMETER | 0.390 INCHES NOMINAL | | HEAD HEIGHT | 0.125 INCHES NOMINAL | | HEAD STYLE | FLAT FILLISTER | | MATERIAL | STEEL PROPERTY CLASS 18.8 OVERALL AND STEEL CORROSION RESISTING OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,THUMB | | POINT STYLE | FLAT | | PROPRIETARY CHARACTERISTICS | PACS | | MINIMUM TENSILE STRENGTH | 70000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | SHOULDER DIAMETER | 0.328 INCHES NOMINAL OVERALL | | SHOULDER LENGTH | 0.156 INCHES NOMINAL OVERALL | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SPECIAL FEATURES | HEAD TYPE: KNURLED;SHOULDER TYPE: STYLE B | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.500 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNC |
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