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National Stock Number:
5305-00-478-0643
Federal Supply Class:
5305
National Item Identification Number:
004780643
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:
| 703061-1 | 96214 | RAYTHEON COMPANY |
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Techincal Specification:
| FASTENER LENGTH | 3.040 INCHES MINIMUM AND 3.060 INCHES MAXIMUM | | HEAD HEIGHT | 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM | | HEAD DIAMETER | 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720 MIL SPEC ALL MATERIAL RESPONSES OVERALL | | MATERIAL | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 316 OVERALL | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | POINT STYLE | FLAT | | SHOULDER DIAMETER | 0.164 INCHES MINIMUM AND 0.165 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 2.790 INCHES MINIMUM AND 2.810 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 32 |
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