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National Stock Number:
5306-01-360-2272
Federal Supply Class:
5306
National Item Identification Number:
013602272
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:
| 1227B0728 | 03538 | LOCKHEED MARTIN CORPORATION | | 1227B0728 | 54497 | MARTIN MARIETTA TECHNOLOGIES INC SUB OF MARTIN MARIETTA CORP AERO AND NAVAL SYSTEMS |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 0.453 INCHES MINIMUM AND | | 0.498 INCHES MAXIMUM | | MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE | | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR RING | | PLASTIC POLYTETRAFLUOROETHYLENE STAND-OFF | | NICKEL ALLOY 400 OR | | NICKEL ALLOY R-405 FASTENER | | THREAD LENGTH | 0.391 INCHES MINIMUM AND | | 0.436 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 2A | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE RING | | MIL-P-22241 MIL SPEC SINGLE MATERIAL RESPONSE STAND-OFF | | QQ-N-781 FED SPEC SINGLE MATERIAL RESPONSE FASTENER | | HEAD HEIGHT | 0.180 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.490 INCHES MINIMUM AND | | 0.502 INCHES MAXIMUM | | LOCKING FEATURE | STRIP THREADS | | GRIP LENGTH | 0.062 INCHES NOMINAL | | SPECIAL FEATURES | DRILLED HOLE COUNTERBORED FROM SHANK END 0.116 IN. DIA |
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