5330-01-414-0776 GASKET Index 5305-01-414-0778 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-414-0777

Federal Supply Class:
5305

National Item Identification Number:
014140777

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:
845-6603141-9753711NAVAL SEA SYSTEMS COMMAND
845-6603147-153711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.885 INCHES MAXIMUM
FASTENER LENGTH0.970 INCHES MINIMUM AND
1.000 INCHES MAXIMUM
MATERIALSTEEL UNS K03104 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCERAMIC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-81751, TYPE B,, CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.365 INCHES MINIMUM AND
0.375 INCHES MAXIMUM
HEAD HEIGHT0.244 INCHES MINIMUM AND
0.250 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.188 INCHES NOMINAL
HOLE CONFIGURATION STYLEROUND
HOLE TYPEDRILLED
HOLE QUANTITY1
HOLE DIAMETER0.043 INCHES MINIMUM AND
0.055 INCHES MAXIMUM


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