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National Stock Number:
5305-01-246-1549
Federal Supply Class:
5305
National Item Identification Number:
012461549
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:
| 863T2020150 | 04236 | LOCKHEED MARTIN CORP | | 863T2020150-003 | 04236 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.625 INCHES | | THREAD QUANTITY PER INCH | 18 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.000 INCHES NOMINAL | | FASTENER LENGTH | 2.800 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5659 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HEAD STYLE | KNURLED NO. 5 | | HEAD DIAMETER | 1.000 INCHES NOMINAL | | HEAD HEIGHT | 1.110 INCHES NOMINAL | | POINT STYLE | FLAT | | POINT LENGTH | 0.060 INCHES NOMINAL | | POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 0.870 INCHES NOMINAL FIRST SHOULDER | | SHOULDER LENGTH | 0.060 INCHES NOMINAL FIRST SHOULDER | | SPECIAL FEATURES | CONCENTRIC HOLE 10-24 UNC-2B X 0.500 IN. DP IN HEAD | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 04236 | | DESIGN CONTROL REFERENCE | 863T2020150-003 |
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