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National Stock Number:
5305-00-927-6918
Federal Supply Class:
5305
National Item Identification Number:
009276918
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:
| 171E855P12 | 89954 | BAE SYSTEMS CONTROLS INC. |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES MINIMUM | | FASTENER LENGTH | 0.870 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | HEAD STYLE | KNURLED NO. 1 | | HEAD DIAMETER | 0.380 INCHES NOMINAL | | HEAD HEIGHT | 0.250 INCHES NOMINAL | | POINT STYLE | CONE | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 89954 | | DESIGN CONTROL REFERENCE | 171E855P12 |
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