Part Number: MS51975-6

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CONDITION:
NS
NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE80205
MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M96906
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.355 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
FASTENER LENGTH1.610 INCHES MINIMUM AND 1.620 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.357 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD HEIGHT0.177 INCHES MINIMUM AND 0.187 INCHES MAXIMUM
SHOULDER DIAMETER0.246 INCHES MINIMUM FIRST SHOULDER AND 0.248 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH1.245 INCHES MINIMUM FIRST SHOULDER AND 1.255 INCHES MAXIMUM FIRST SHOULDER
INTERNAL DRIVE STYLEHEXAGON
NOMINAL THREAD DIAMETER0.190 INCHES
WIDTH ACROSS FLATS0.125 INCHES NOMINAL
THREAD QUANTITY PER INCH24
MINIMUM TENSILE STRENGTH140000 POUNDS PER SQUARE INCH
HARDNESS RATING32.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL
SHOULDER SHAPEROUND FIRST SHOULDER
MATERIALSTEEL COMP 4037 OVERALL OR STEEL COMP 4137 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8740 OVERALL
SURFACE TREATMENTCADMIUM OVERALL AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES DESIGNATORUNC
An externally threaded fastener whose threaded portion is of one nominal diameter, No ( . 6 IN.) (1.5 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 designed to be driven with either a wrench or an inserted driver or both in sizes below No. 1 ( .19 IN.) (5 mm) nominal diameter. No. 1 ( .19 IN.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use SCREW, EXTERNALLY RELIEVED BODY. For items with a No. 1 ( .19 IN.) (5 mm) or larger thread diameter without an inserted driver head, use BOLT, SHOULDER. Excludes BOLT, INTERNAL WRENCHING and SCREW, CAP, SOCKET HEAD.