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National Stock Number:
5305-01-365-4858
Federal Supply Class:
5305
National Item Identification Number:
013654858
Description:
SCREW,CAP,SOCKET HEAD
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
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Manufacturer Information:
| 3M991N3-4 | 45722 | USM CORP SUB OF EMHART INDUSTRIES INC PARKER-KALON FASTENER DIV | | 3M991N3-4 | 56878 | SPS TECHNOLOGIES, LLC | | 3M991N3-4 | 82896 | SAFETY SOCKET LLC |
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Techincal Specification:
| FASTENER LENGTH | 0.641 INCHES MINIMUM AND 0.671 INCHES MAXIMUM | | HEAD DIAMETER | 0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | | HEAD HEIGHT | 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | IRON ALLOY 660 OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | WIDTH ACROSS FLATS | 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.406 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 32 |
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