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National Stock Number:
5306-01-349-8865
Federal Supply Class:
5306
National Item Identification Number:
013498865
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:
| 03A227-4-12 | 1W025 | NORTHROP GRUMMAN SYSTEMS CORP | | 03A227-4-12 | 76823 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | SLB142-4-12 | 16258 | SPACE-LOK, INC. | | LB83-4-12 | 73197 | HI-SHEAR CORPORATION | | AS368-4-12 | 84256 | AVIBANK MFG., INC. | | LB83-4-12 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 1.206 INCHES MINIMUM AND | | 1.222 INCHES MAXIMUM | | MATERIAL | STEEL CORROSION RESISTING OR | | COBALT ALLOY SPRING | | TITANIUM ALLOY UNS R56400 FASTENER | | THREAD LENGTH | 0.456 INCHES NOMINAL | | HEAD STYLE | FLAT COUNTERSUNK | | THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR | | AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE FASTENER | | HEAD DIAMETER | 0.486 INCHES MINIMUM AND | | 0.507 INCHES MAXIMUM | | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | LOCKING FEATURE | DETENT BALL HEAD | | GRIP LENGTH | 0.750 INCHES MINIMUM AND | | 0.766 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES OVERALL | | SPECIAL FEATURES | FURNISHED WITH PAUL AND PLUNGER |
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