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National Stock Number:
5305-01-439-4220
Federal Supply Class:
5305
National Item Identification Number:
014394220
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:
| A3132832-2 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR | | D0078.1001 | A0069 | LEONARDO S.P.A. SECURITY & INFORMATION SYSTEM DIVISION |
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Techincal Specification:
| EXTERNAL THREAD TOLERANCE CLASS | 6G | | FASTENER LENGTH | 41.0 MILLIMETERS NOMINAL | | HEAD HEIGHT | 22.0 MILLIMETERS NOMINAL | | HEAD STYLE | THUMB NO. 4 | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 304 OVERALL | | NOMINAL THREAD DIAMETER | 8.0 MILLIMETERS | | SPECIAL FEATURES | TWO UNTHREADED HOLES IN HEAD 3.0MM DIA,24.0MM DISTANCE CENTER TO CENTER;UNTHREADED PORTION ON SHANK IN MIDDLE OF THREADED AREA 27.0MM LG AND 6.42MM DIA | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 22.0 MILLIMETERS NOMINAL | | THREAD PITCH IN MILLIMETERS | 1.25 | | THREAD SERIES DESIGNATOR | M | | WIDTH BETWEEN FLATS | 34.0 MILLIMETERS NOMINAL |
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