National Item Identification Number
01-317-4316
013174316
5305-01-317-4316
5305013174316
National Stock Number
Item Name
SCREW,CAP,SOCKET HEAD
Federal Supply Class
5305
Description
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.
Commercial and Government Entity Code (Supplier Data)
80020
Reference Numbers (Part Numbers)
509440-1430A
Required Categories
THREAD CLASS
MATERIAL
HARDNESS RATING
HEAD STYLE
HEAD DIAMETER
HEAD HEIGHT;
Required Description
3A
STEEL COMP 4140 OVERALL
37.0 ROCKWELL C MAXIMUM OVERALL
C49 FLAT CHAMFER;