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National Stock Number:
5305-01-066-0043
Federal Supply Class:
5305
National Item Identification Number:
010660043
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:
| 502608-0001 | 65597 | THALES USA, INC. |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | NONSTANDARD THREAD PITCH DIAMETER | 0.2088 TO 0.2108 INCHES | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.470 INCHES NOMINAL | | FASTENER LENGTH | 2.340 INCHES NOMINAL | | MATERIAL | PLASTIC HEAD | | STEEL COMP 303 GRIP | | STEEL COMP 303 THREADS | | MATERIAL DOCUMENT AND CLASSIFICATION | LEXAN GRFL-900 FSCM 24446 MFR REF SINGLE MATERIAL RESPONSE HEAD | | QQ-S-763 COND A FED SPEC SINGLE MATERIAL RESPONSE GRIP | | QQ-S-763 COND A FED SPEC SINGLE MATERIAL RESPONSE THREADS | | SURFACE TREATMENT | LACQUER ACRYLIC OVERALL | | HEAD STYLE | KNURLED NO. 4 | | HEAD DIAMETER | 1.250 INCHES NOMINAL | | HEAD HEIGHT | 0.343 INCHES NOMINAL | | POINT STYLE | FLAT | | POINT LENGTH | 0.120 INCHES NOMINAL | | POINT CHAMFER ANGLE | 120.0 DEGREES NOMINAL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 65597 | | DESIGN CONTROL REFERENCE | 502608-0001 |
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