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National Stock Number:
5305-00-081-7193
Federal Supply Class:
5305
National Item Identification Number:
000817193
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:
| 8635087 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| FASTENER LENGTH | 0.843 INCHES MINIMUM AND 0.890 INCHES MAXIMUM | | HEAD DIAMETER | 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM | | HEAD HEIGHT | 0.172 INCHES MINIMUM AND 0.188 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | POINT STYLE | OVAL | | SPECIAL FEATURES | SUPPLY WITH PLASTIC PELLET TYPE LOCKING ELEMENT LOCATED IN THREADS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.772 INCHES MINIMUM AND 0.890 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNF |
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