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National Stock Number:
5306-00-019-6671
Federal Supply Class:
5306
National Item Identification Number:
000196671
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:
| 42206E18 | 82402 | TRIUMPH GEAR SYSTEMS INC |
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Techincal Specification:
| CONCENTRIC HOLE DIAMETER | 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM | | FASTENER LENGTH | 2.250 INCHES NOMINAL | | HARDNESS RATING | 25.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.750 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | INTERNAL THREAD CLASS | 3B CONCENTRIC HOLE | | INTERNAL THREAD DIRECTION | RIGHT-HAND COUNTERBORE | | INTERNAL THREAD LENGTH | 0.525 INCHES NOMINAL COUNTERBORE | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 630 OVERALL | | NOMINAL THREAD SIZE | 0.562 INCHES COUNTERBORE | | NOMINAL THREAD DIAMETER | 0.437 INCHES | | WIDTH BETWEEN FLATS | 0.750 INCHES NOMINAL | | STYLE DESIGNATOR | COUNTERBORE THREADED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 2.120 INCHES MINIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD SERIES | UNF COUNTERBORE | | THREAD QUANTITY PER INCH | 20 | | THREADS PER INCH | 18 COUNTERBORE |
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