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National Stock Number:
5305-01-310-1598
Federal Supply Class:
5305
National Item Identification Number:
013101598
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:
| ST3M569-3-31-15 | 70318 | ALLMETAL SCREW PRODUCTS CORP | | ST3M569-3-31-15 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| HEAD HEIGHT | 0.750 INCHES MINIMUM AND | | 0.810 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.840 INCHES MINIMUM AND | | 0.900 INCHES MAXIMUM | | POINT STYLE | FLAT | | SPECIAL FEATURES | COTTER PIN HOLE LOCATED 0.150 IN. FROM END OF SCREW TO CENTER OF HOLE; HOLE DIA 0.078 IN. MIN 0.083 IN. MAX | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.846 INCHES MINIMUM AND | | 1.968 INCHES MAXIMUM | | FASTENER LENGTH | 1.908 INCHES MINIMUM AND | | 1.968 INCHES MAXIMUM | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | HEAD STYLE | THUMB NO. 3 |
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