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National Stock Number:
5305-00-138-6206
Federal Supply Class:
5305
National Item Identification Number:
001386206
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:
| 2518790 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.270 INCHES NOMINAL | | FASTENER LENGTH | 0.440 INCHES NOMINAL | | MATERIAL | STEEL COMP 303 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | HEAD STYLE | KNURLED NO. 4 | | HEAD DIAMETER | 0.750 INCHES NOMINAL | | HEAD HEIGHT | 0.810 INCHES NOMINAL | | POINT STYLE | CHAMFER DOG | | POINT LENGTH | 0.070 INCHES NOMINAL | | POINT DIAMETER | 0.230 INCHES NOMINAL | | POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 0.418 INCHES NOMINAL FIRST SHOULDER | | SHOULDER LENGTH | 0.100 INCHES NOMINAL FIRST SHOULDER | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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