National Item Identification Number
00-177-5321
001775321
5305-00-177-5321
5305001775321
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)
26233
Reference Numbers (Part Numbers)
FF-S-86E
NAS1352C4LN28
NK60CR420-28E
TN1352C4LN28
12208-4
4-00277-087
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNC
0.250 INCHES
20
3A
RIGHT-HAND
1.000 INCHES MINIMUM
1.734 INCHES MINIMU
