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National Stock Number:
5306-01-249-2208
Federal Supply Class:
5306
National Item Identification Number:
012492208
Description:
BOLT,SHOULDER
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than No. 10 (0.190 IN.) (5 mm) and those items with an inserted drive head, use SCREW, SHOULDER. For items which are No. 10 (0.190 IN.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use BOLT, EXTERNALLY RELIEVED BODY. Excludes THUMBSCREW.
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Manufacturer Information:
| 10937875-5 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.765 INCHES NOMINAL | | FASTENER LENGTH | 1.938 INCHES NOMINAL | | MATERIAL | STEEL COMP 4135H OR | | STEEL COMP 5140H OR | | STEEL COMP 8637H OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A304 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-Z-325 TY 2,CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND | | 38.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | HEXAGON | | HEAD HEIGHT | 0.312 INCHES MINIMUM AND | | 0.344 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.625 INCHES NOMINAL | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 0.4345 INCHES MINIMUM AND | | 0.4355 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 1.257 INCHES NOMINAL FIRST SHOULDER |
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