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National Stock Number:
5305-00-341-6607
Federal Supply Class:
5305
National Item Identification Number:
003416607
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:
| BACS12W10-20 | 82918 | THE BOEING COMPANY |
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Techincal Specification:
| FASTENER LENGTH | 1.220 INCHES MINIMUM AND 1.280 INCHES MAXIMUM | | HEAD HEIGHT | 0.350 INCHES MINIMUM AND 0.470 INCHES MAXIMUM | | HEAD STYLE | WING NO. 3 | | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OR AISI A108 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | POINT STYLE | FLAT | | SPECIAL FEATURES | HOLE DRILLED IN WING 0.070 IN. NOMINAL DIA | | WIDTH BETWEEN FLATS | 0.780 INCHES MINIMUM AND 0.900 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 1.158 INCHES MINIMUM AND 1.280 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 32 |
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