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National Stock Number:
5305-01-438-4311
Federal Supply Class:
5305
National Item Identification Number:
014384311
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:
| 121-033-302 | 20747 | L-3 COMMUNICATIONS CORPORATION DBA GLOBAL NETWORK SOLUTIONS DIV AYDIN COMMUNICATIONS DIVISION | | 18066-SS-12 | 51506 | ACCURATE SCREW MACHINE CORP |
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Techincal Specification:
| FASTENER LENGTH | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM | | HEAD DIAMETER | 0.437 INCHES MINIMUM AND 0.457 INCHES MAXIMUM | | HEAD HEIGHT | 0.172 INCHES MINIMUM AND 0.202 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 5 | | PART NAME ASSIGNED BY CONTROLLING AGENCY | PLAIN THUMB SCREW | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | POINT STYLE | FLAT | | SPECIAL FEATURES | 0.015 INCH BY 45 DEGREE CHAMFER | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNF |
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