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National Stock Number:
5305-01-576-2743
Federal Supply Class:
5305
National Item Identification Number:
015762743
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:
| 802027334313-1 | 12255 | NAVY, UNITED STATES DEPARTMENT OF THE | | 936-SS-12-SDS | 51506 | ACCURATE SCREW MACHINE CORP |
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Techincal Specification:
| FASTENER LENGTH | 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM | | HEAD DIAMETER | 0.250 NOMINAL MILS AND 0.270 NOMINAL CENTIMETERS | | HEAD HEIGHT | 0.485 NOMINAL MILS AND 0.515 NOMINAL CENTIMETERS | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL | STEEL COMP 303 OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | THUMBSCREW | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SPECIAL FEATURES | ITEM HAS 0.031 X 45 DEGREES CHAMFER AND A DIAMOND KNURL HEAD | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNC |
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