5305-01-410-7076 SCREW,EXTERNALLY RELIEVED BODY Index 5340-01-410-7078 FASTENER,PAWL

National Stock Number:
5305-01-410-7077

Federal Supply Class:
5305

National Item Identification Number:
014107077

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.


Manufacturer Information:
806-340-181579MASON ELECTRIC CO.


Techincal Specification:
FASTENER LENGTH0.376 INCHES MINIMUM AND 0.386 INCHES MAXIMUM
HARDNESS RATING38.0 ROCKWELL C MINIMUM TOP OF HEAD AND 47.0 ROCKWELL C MAXIMUM TOP OF HEAD
HEAD DIAMETER0.303 INCHES MINIMUM AND 0.311 INCHES MAXIMUM
HEAD HEIGHT0.187 INCHES NOMINAL
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
LOCKING FEATUREPATCH THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE FASTENER
MATERIALPLASTIC POLYAMIDE LOCKING FEATURE
MATERIALSTEEL COMP 410 FASTENER
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER0.190 INCHES
WIDTH ACROSS FLATS0.1545 INCHES MINIMUM AND 0.1595 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924 CL 4 MIL SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENTOXIDE FASTENER
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.376 INCHES MINIMUM AND 0.386 INCHES MAXIMUM
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNF


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