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National Stock Number:
5305-00-511-8048
Federal Supply Class:
5305
National Item Identification Number:
005118048
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:
| 8015880 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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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 | 1.547 INCHES MINIMUM AND | | 1.578 INCHES MAXIMUM | | FASTENER LENGTH | 1.547 INCHES MINIMUM AND | | 1.578 INCHES MAXIMUM | | MATERIAL | STEEL COMP 1117 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | WING NO. 3 | | HEAD HEIGHT | 0.500 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 1.030 INCHES NOMINAL | | POINT STYLE | POINTLESS | | SPECIAL FEATURES | REMOVEABLE HEAD PINNED TO SHANK,0.062 IN.DIA HOLE LOCATED 0.250 IN.FROMEND OF SHANK | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 18876 | | DESIGN CONTROL REFERENCE | 8015880 |
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