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National Stock Number:
5306-01-143-1750
Federal Supply Class:
5306
National Item Identification Number:
011431750
Description:
BOLT,ECCENTRIC HEAD
Detail:
AN EXTERNALLY THREADED FASTENER THE HEAD OF WHICH IS USUALLY FLAT WITH A PERIPHERY NOT CONCENTRIC TO THE BOLT SHANK. THE HEAD IS NOT DESIGNED FOR WRENCHING. IT MAY HAVE A DRIVE FEATURE LOCATED AT THE THREADED END, WHICH CAN BE USED TO ROTATE THE SCREW AND ECCENTRIC HEAD INTO A LOCKING POSITION TO SECURE A FLANGED OR GROOVE COMPONENT.
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Manufacturer Information:
| 65122-11227-104 | 0UCY9 | M.S. AEROSPACE INC. | | 65122-11227-104 | 58078 | AIRTRONICS, LLC | | 65122-11227-104 | 65780 | TEK PRECISION CO LIMITED | | 65122-11227-104 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| DISTANCE FROM CENTER OF HEAD TO CENTER OF SHANK | 2.648 INCHES NOMINAL | | FASTENER LENGTH | 5.295 INCHES NOMINAL | | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 1.250 INCHES NOMINAL | | HEAD HEIGHT | 0.375 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000,COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4340 OVERALL | | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.875 INCHES | | WIDTH BETWEEN FLATS | 1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SS8487,FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | SILVER OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 14 |
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