National Item Identification Number
01-320-8040
013208040
5305-01-320-8040
5305013208040
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)
78062
Reference Numbers (Part Numbers)
NAS1351N4H12S
20428-002 FIND 99
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNRF
0.250 INCHES
28
3A
RIGHT-HAND
0.649 INCHES MINIMUM
0.720 INCHES MINIM