National Item Identification Number
01-027-8957
010278957
5305-01-027-8957
5305010278957
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)
80063
Reference Numbers (Part Numbers)
SM-B-653140-2
4-40 UNC-2AX3/8
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNC
0.112 INCHES
40
2A
RIGHT-HAND
0.310 INCHES MINIMUM AND
0.390 INCHES MA