National Item Identification Number
00-990-6431
009906431
5305-00-990-6431
5305009906431
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)
99167
19204
Reference Numbers (Part Numbers)
MS24678-20
MS24678-20
MS24678-20C
MS24678-20C
P15C7989-54
P15C7989-54
P15C
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNF
0.250 INCHES
28
3A
RIGHT-HAND
0.445 INCHES MINIMUM
0.500 INCHES NOMINA