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National Stock Number:
5305-00-301-4328
Federal Supply Class:
5305
National Item Identification Number:
003014328
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:
| 8151616 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 18 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.562 INCHES MINIMUM | | FASTENER LENGTH | 1.250 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 6,TYPE C FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | HEAD STYLE | KNURLED NO. 2 | | HEAD DIAMETER | 1.250 INCHES NOMINAL | | HEAD HEIGHT | 0.625 INCHES NOMINAL | | POINT STYLE | FLAT | | SPECIAL FEATURES | UNDERCUT UNTHREADED PORTION 0.243 IN.DIA,0.687 IN.LONG | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 18876 | | DESIGN CONTROL REFERENCE | 8151616 |
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