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National Stock Number:
5305-01-210-0770
Federal Supply Class:
5305
National Item Identification Number:
012100770
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:
| 12334999 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | THREAD QUANTITY PER INCH | 16 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.910 INCHES MAXIMUM | | FASTENER LENGTH | 1.970 INCHES MINIMUM AND | | 2.030 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | OXIDE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 58.0 ROCKWELL C MINIMUM AND | | 62.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | THUMB NO. 1 | | HEAD HEIGHT | 0.970 INCHES MINIMUM AND | | 1.030 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.970 INCHES MINIMUM AND | | 1.030 INCHES MAXIMUM | | POINT STYLE | FLAT | | SPECIAL FEATURES | COLOR BLACK |
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