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National Stock Number:
5305-00-701-5771
Federal Supply Class:
5305
National Item Identification Number:
007015771
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:
| 5306U1A001 | 81996 | U S ARMY AVIATION AND MISSILE COMMAND | | C3N97-3 | 71867 | DE HAVILLAND AIRCRAFT OF CANADA LIMITED |
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Techincal Specification:
| FASTENER LENGTH | 9.550 INCHES NOMINAL | | HEAD HEIGHT | 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM | | HEAD STYLE | WING NO. 2 | | MATERIAL | STEEL COMP 4130 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | POINT STYLE | POINTLESS | | WIDTH BETWEEN FLATS | 1.042 INCHES MINIMUM AND 1.082 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNF |
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