National Item Identification Number
01-179-7855
011797855
5305-01-179-7855
5305011797855
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)
21335
TIMKEN US CORPORATION
DIV FAFNIR
59 FIELD ST
TORRINGTON
CT
06790
603-443-5282
60380
TIMKEN US CORPORATION
DIV NEEDLE BEARINGS DIV
59 FIELD ST
TORRINGTON
CT
06790
603-443-5282
19207
Reference Numbers (Part Numbers)
CRSB-16
CRSB-16
12316522
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNF
0.4375 INCHES
20
2A
RIGHT-HAND
0.500 INCHES NOMINAL
1.000 INCHES NOMIN