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National Stock Number:
5305-01-026-6873
Federal Supply Class:
5305
National Item Identification Number:
010266873
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:
| 2145231-1 | 19315 | HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER BENDIX NAVIGATION AND CONTROL SYSTEMS | | 2145231-1 | 55974 | HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER TEST SYSTEMS DIV |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.250 INCHES NOMINAL | | FASTENER LENGTH | 1.781 INCHES NOMINAL | | MATERIAL | COPPER ALLOY OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-626 COMP 22 1/2H FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | TIN OVERALL | | HEAD STYLE | KNURLED NO. 1 | | HEAD DIAMETER | 0.625 INCHES NOMINAL | | HEAD HEIGHT | 0.750 INCHES NOMINAL | | POINT STYLE | CHAMFER DOG | | POINT LENGTH | 0.531 INCHES NOMINAL | | POINT DIAMETER | 0.187 INCHES NOMINAL | | POINT CHAMFER ANGLE | 90.0 DEGREES NOMINAL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 55974 | | DESIGN CONTROL REFERENCE | 2145231-1 |
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