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National Stock Number:
5305-01-397-5920
Federal Supply Class:
5305
National Item Identification Number:
013975920
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:
| C99S12248-11 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | C99S12248-11 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| FASTENER LENGTH | 5.620 INCHES NOMINAL | | HEAD DIAMETER | 1.500 INCHES NOMINAL | | HEAD HEIGHT | 1.790 INCHES NOMINAL | | HEAD STYLE | FLAT FILLISTER | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A36 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.875 INCHES | | SPECIAL FEATURES | HEXAGON POINT ON END OF THREAD | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-C-320 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CHROMIUM OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 14 | | THREAD LENGTH | 4.320 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNF |
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