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National Stock Number:
5305-01-353-6878
Federal Supply Class:
5305
National Item Identification Number:
013536878
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:
| 5548129 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| COLOR | BLACK OVERALL | | FASTENER LENGTH | 5.120 INCHES NOMINAL | | HEAD HEIGHT | 0.260 INCHES NOMINAL | | HEAD DIAMETER | 3.620 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 6061 OVERALL | | NONSTANDARD THREAD PITCH DIAMETER | +2.2250 TO 2.5050 INCHES | | SPECIAL FEATURES | INTERNAL CONCENTRIC HOLE 4.500 IN.LG; DIA. 1.625 IN.,COUNTERBORE .880 IN.LG. DIA. 1.000,NPT 1/2 IN. | | SURFACE TREATMENT | DICHROMATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES DESIGNATOR | BUTTRESS |
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