National Item Identification Number
01-353-2021
013532021
5305-01-353-2021
5305013532021
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)
80204
53711
53711
53711
Reference Numbers (Part Numbers)
ANSI B18.3
MIL-S-1222
211037357
585-6404851 ITEM 57
593-6405224 PIECE 96
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNRC
0.375 INCHES
16
2A
RIGHT-HAND
1.125 INCHES NOMINAL
1.250 INCHES NOMIN