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National Stock Number:
5305-00-145-0994
Federal Supply Class:
5305
National Item Identification Number:
001450994
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:
| 1188570 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| FASTENER LENGTH | 1.281 INCHES MINIMUM AND 1.344 INCHES MAXIMUM | | HEAD DIAMETER | 0.397 INCHES MINIMUM AND 0.400 INCHES MAXIMUM | | HEAD HEIGHT | 0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,COND B FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | POINT STYLE | FLAT | | SHOULDER DIAMETER | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.234 INCHES MINIMUM AND 0.328 INCHES MAXIMUM FIRST SHOULDER | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES MINIMUM AND 0.938 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNC |
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