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National Stock Number:
5305-00-115-5893
Federal Supply Class:
5305
National Item Identification Number:
001155893
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:
| 128ABM10289-11 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 128ABM10289-13 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 128ABM10289-13 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| FASTENER LENGTH | 2.250 INCHES NOMINAL | | HEAD DIAMETER | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM | | HEAD HEIGHT | 0.553 INCHES MINIMUM AND 0.573 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 1 | | HOLE CONFIGURATION STYLE | HEXAGON LONGITUDINAL HOLE | | HOLE DIAMETER | 0.072 INCHES NOMINAL | | HOLE QUANTITY | 1 | | HOLE TYPE | DRILLED | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | POINT STYLE | FLAT | | SHOULDER DIAMETER | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.057 INCHES MINIMUM AND 0.077 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SPECIAL FEATURES | 0.045 IN.MIN 0.050 IN MAX DIA HOLE ON SHANK NEAR TIP | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 32 |
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