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National Stock Number:
5306-00-373-5349
Federal Supply Class:
5306
National Item Identification Number:
003735349
Description:
BOLT,INTERNALLY RELIEVED BODY
Detail:
An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see BOLT, FLUID PASSAGE.
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Manufacturer Information:
| 89LM1641-1 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| CONCENTRIC HOLE DIAMETER | 1.000 INCHES NOMINAL | | FASTENER LENGTH | 3.250 INCHES MAXIMUM | | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.500 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL COMP E4340 OR STEEL COMP 4340 OVERALL | | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 1.375 INCHES | | STYLE DESIGNATOR | CONCENTRIC HOLE UNTHREADED | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.880 INCHES MINIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 12 | | WIDTH BETWEEN FLATS | 1.977 INCHES MINIMUM AND 2.002 INCHES MAXIMUM |
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