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National Stock Number:
5305-01-246-1427
Federal Supply Class:
5305
National Item Identification Number:
012461427
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:
| 5305PL0905275 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | FRB7500-8-C-3 | 0HDW7 | HUCK INTERNATIONAL, INC. | | FRB7500-8-C-3 | 97928 | HUCK INTL INC |
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Techincal Specification:
| FASTENER LENGTH | 0.390 INCHES NOMINAL | | HEAD DIAMETER | 0.420 INCHES NOMINAL | | HEAD HEIGHT | 0.495 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.164 INCHES | | POINT STYLE | POINTLESS | | SHOULDER DIAMETER | 0.385 INCHES NOMINAL FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER LENGTH | 0.258 INCHES NOMINAL FIRST SHOULDER | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.250 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
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