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National Stock Number:
5305-01-237-1176
Federal Supply Class:
5305
National Item Identification Number:
012371176
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:
| 0N307597-3 | 98230 | NATIONAL SECURITY AGENCY | | 6134U-SS-0440-7 | 06540 | NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV | | 6134U-SS-0440-7 | 1YGB8 | CAREY MANUFACTURING CO, INC |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.625 INCHES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FASTENER LENGTH | 0.906 INCHES NOMINAL | | FIRST DIAMETER FROM HEAD | 0.073 INCHES MINIMUM AND 0.083 INCHES MAXIMUM | | HEAD DIAMETER | 0.312 INCHES NOMINAL | | HEAD HEIGHT | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A581 ASSN STD ALL MATERIAL RESPONSES OVERALL | | MATERIAL | STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303MA OR STEEL COMP 303SE OVERALL | | NOMINAL THREAD DIAMETER | 0.112 INCHES | | POINT STYLE | CONE | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 40 | | THREAD SERIES DESIGNATOR | UNC |
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