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National Stock Number:
5306-01-266-8301
Federal Supply Class:
5306
National Item Identification Number:
012668301
Description:
BOLT,MACHINE
Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.
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Manufacturer Information:
| BR2111-6281 | 17023 | BRUCE AEROSPACE INC | | ST26D58-6281 | 04236 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| FASTENER LENGTH | 2.577 INCHES MINIMUM AND 2.607 INCHES MAXIMUM | | FEATURES PROVIDED | FINISHED HEAD | | GRIP LENGTH | 1.735 INCHES MINIMUM AND 1.765 INCHES MAXIMUM | | HEAD HEIGHT | 0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | IRON ALLOY 660 OVERALL | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | SPECIAL FEATURES | FURNISHED WITH TAB,WASHER,SPACER; TAB AND WASHER CRES PER MIL-S-6069 COMP 301 COND A; SPACER TYPE 303SE COND A; ALL PARTS PASSIVATED PER QQ-P-35 | | WIDTH BETWEEN FLATS | 0.741 INCHES MINIMUM AND 0.751 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.812 INCHES MINIMUM AND 0.872 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNJF |
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