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National Stock Number:
5305-01-190-6655
Federal Supply Class:
5305
National Item Identification Number:
011906655
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:
| 12292635 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.500 INCHES NOMINAL | | FASTENER LENGTH | 0.630 INCHES NOMINAL | | MATERIAL | STEEL COMP 316 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | KNURLED NO. 1 | | HEAD DIAMETER | 0.620 INCHES NOMINAL | | HEAD HEIGHT | 0.250 INCHES NOMINAL | | POINT STYLE | POINTLESS | | SHOULDER SHAPE | ROUND OVERALL | | SPECIAL FEATURES | FASTNER CHAMFERED 0.05IN BY 45 DEGREES; HEAD IS 96 DP RAISED DIAMOND KNURL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 19207 | | DESIGN CONTROL REFERENCE | 12292635 |
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