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National Stock Number:
5306-00-894-2124
Federal Supply Class:
5306
National Item Identification Number:
008942124
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:
| 123AMM40185-1 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 123AMM40185-1 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.437 INCHES NOMINAL FIRST HOLE | | CONCENTRIC HOLE DIAMETER | 0.717 INCHES MINIMUM AND 0.726 INCHES MAXIMUM | | COUNTERBORE DIAMETER | 0.858 INCHES MINIMUM AND 0.869 INCHES MAXIMUM | | COUNTERBORE DEPTH | 1.312 INCHES NOMINAL | | FASTENER LENGTH | 2.562 INCHES NOMINAL | | HARDNESS RATING | 37.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 1.750 INCHES NOMINAL | | HEAD HEIGHT | 0.190 INCHES NOMINAL | | HEAD STYLE | ROUND W/WRENCH FLATS | | MATERIAL | STEEL COMP 4340 OVERALL | | MINIMUM TENSILE STRENGTH | 165 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 1.125 INCHES | | SHOULDER DIAMETER | 1.247 INCHES MINIMUM AND 1.248 INCHES MAXIMUM | | SHOULDER LENGTH | 1.598 INCHES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | SHANK UNTHREADED HOLE DIAMETER | 0.069 INCHES MINIMUM AND 0.074 INCHES MAXIMUM FIRST HOLE | | WIDTH BETWEEN FLATS | 1.500 INCHES NOMINAL | | STYLE DESIGNATOR | COUNTERBORE UNTHREADED | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.964 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 12 |
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