National Item Identification Number
01-318-5234
013185234
5305-01-318-5234
5305013185234
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)
D9182
D9182
D9182
53711
80204
Reference Numbers (Part Numbers)
FF-S-86
FF-S-86 1/4-20U NC 3A-1/2 IN
FF-S-86,TY-VI
QQN286,0.250-20 UNC-3AX2.0
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNC
0.250 INCHES
20
3A
RIGHT-HAND
0.400 INCHES MINIMUM AND
0.500 INCHES MA