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National Stock Number:
5305-00-208-7421
Federal Supply Class:
5305
National Item Identification Number:
002087421
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:
| 0R0ACA1183 | 76912 | ORO MANUFACTURING CO | | ACA1183 | 76912 | ORO MANUFACTURING CO |
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Techincal Specification:
| FASTENER LENGTH | 0.625 INCHES NOMINAL | | HEAD HEIGHT | 0.765 INCHES NOMINAL | | HEAD STYLE | THUMB NO. 5 | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | POINT DIAMETER | 0.225 INCHES NOMINAL | | POINT LENGTH | 0.109 INCHES NOMINAL | | POINT STYLE | DOG | | WIDTH BETWEEN FLATS | 0.682 INCHES NOMINAL | | SURFACE TREATMENT | CADMIUM OR ZINC OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.516 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNC |
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