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National Stock Number:
5306-00-299-2805
Federal Supply Class:
5306
National Item Identification Number:
002992805
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:
| 1.250-7UNC-2A X 3.75 NICKEL | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED | | MIL-DTL-1222 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MIL-S-1222 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 3.750 INCHES NOMINAL | | MATERIAL | NICKEL ALLOY 400 OVERALL | | THREAD LENGTH | 2.750 INCHES MINIMUM | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 1.250 INCHES | | THREAD QUANTITY PER INCH | 7 | | THREAD CLASS | 2A | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 40000 POUNDS PER SQUARE INCH | | HEAD HEIGHT | 0.749 INCHES MINIMUM AND | | 0.813 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 1.812 INCHES MINIMUM AND | | 1.875 INCHES MAXIMUM | | FEATURES PROVIDED | FINISHED HEAD | | NONDEFINITIVE SPEC/STD DATA | 1 TYPE | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 81349 | | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-DTL-1222 |
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