National Item Identification Number
01-498-9937
014989937
5305-01-498-9937
5305014989937
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)
05047
AMERICAN SOCIETY OF MECHANICAL
ENGINEERS THE INC
3 PARK AVE FL 21
NEW YORK
NY
10016
800-843-2763
05047
AMERICAN SOCIETY OF MECHANICAL
ENGINEERS THE INC
3 PARK AVE FL 21
NEW YORK
NY
10016
800-843-2763
Reference Numbers (Part Numbers)
ASME B18.3
S300NA42FAD11574NNPF3
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNF
0.250 INCHES
28
2A
RIGHT-HAND
0.562 INCHES NOMINAL
0.562 INCHES NOMINA