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National Stock Number:
5305-01-372-5675
Federal Supply Class:
5305
National Item Identification Number:
013725675
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:
| 510037 | 48619 | PRECISION SCIENTIFIC PETROLEUM INSTRUMENTS CO |
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Techincal Specification:
| FASTENER LENGTH | 0.750 INCHES NOMINAL | | HEAD HEIGHT | 0.343 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 2 | | MATERIAL | COPPER ALLOY OVERALL | | NOMINAL THREAD DIAMETER | 0.164 INCHES | | POINT LENGTH | 0.625 INCHES NOMINAL | | POINT STYLE | CHAMFER DOG | | POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL | | POINT DIAMETER | 0.090 INCHES MINIMUM AND 0.091 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.079 INCHES NOMINAL | | THREAD CLASS | 2A | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 32 |
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