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National Stock Number:
5305-01-010-2337
Federal Supply Class:
5305
National Item Identification Number:
010102337
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:
| 595132 | 06481 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 595132 | 13973 | LITTON SYSTEMS INC. DIV NAVIGATION SYSTEMS DIVISION | | 595132 | 21530 | SPENCER INDUSTRIES INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.240 INCHES MINIMUM AND | | 0.300 INCHES MAXIMUM | | FASTENER LENGTH | 0.730 INCHES MINIMUM AND | | 0.770 INCHES MAXIMUM | | MATERIAL | STEEL COMP 302 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | THUMB NO. 3 | | HEAD HEIGHT | 0.750 INCHES MINIMUM AND | | 0.780 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.667 INCHES MINIMUM AND | | 0.697 INCHES MAXIMUM | | POINT STYLE | FLAT | | FIRST DIAMETER FROM HEAD | 0.245 INCHES MINIMUM AND | | 0.255 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.470 INCHES MINIMUM AND | | 0.490 INCHES MAXIMUM |
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