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National Stock Number:
5305-99-749-4316
Federal Supply Class:
5305
National Item Identification Number:
997494316
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:
| 270-47225 | K0656 | BAE SYSTEMS (OPERATIONS) LIMITED |
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Techincal Specification:
| COLOR | BLACK HEAD | | FASTENER LENGTH | 0.580 INCHES NOMINAL | | HEAD DIAMETER | 0.395 INCHES MINIMUM AND 0.405 INCHES MAXIMUM | | HEAD HEIGHT | 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 3 | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 TYPE 302 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.112 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924 CLASS 4 MIL SPEC 2ND TREATMENT RESPONSE HEAD | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 TYPE 2 ASSN STD 1ST TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | OXIDE HEAD | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.310 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 40 | | THREAD SERIES DESIGNATOR | UNC |
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