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National Stock Number:
5305-00-373-0779
Federal Supply Class:
5305
National Item Identification Number:
003730779
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:
| A51S31362-19 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | A51S31362-19 | 61174 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | PLA51S31362 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | A51S31362-19 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES MINIMUM | | FASTENER LENGTH | 3.000 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | HEAD STYLE | KNURLED NO. 6 | | HEAD DIAMETER | 0.500 INCHES NOMINAL | | HEAD HEIGHT | 2.250 INCHES NOMINAL | | POINT STYLE | FLAT | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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