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National Stock Number:
5305-01-386-9010
Federal Supply Class:
5305
National Item Identification Number:
013869010
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:
| 752-5036-001 | 13499 | ROCKWELL COLLINS, INC. |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UN | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 18 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.620 INCHES NOMINAL | | FASTENER LENGTH | 1.620 INCHES NOMINAL | | MATERIAL | COPPER ALLOY 360 OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-B-626 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | KNURLED NO. 1 | | HEAD DIAMETER | 0.500 INCHES NOMINAL | | HEAD HEIGHT | 0.500 INCHES NOMINAL | | SPECIAL FEATURES | UNDERCUT TWO PLACES .090 IN WIDE .245 IN DIA. BENEATH SURFACE OF THE HEAD AND .38 IN FROM OPPOSITE END OF THE SCREW |
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