National Item Identification Number
01-440-4891
014404891
5305-01-440-4891
5305014404891
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)
10941
CARVER PUMP COMPANY
DBA
2415 PARK AVENUE
MUSCATINE
IA
52761
563-262-7676
D9182
Reference Numbers (Part Numbers)
N-999-6064-B-001 ITEM NO. 44
1/4-20UNC3A QQN -281D CL A OR B
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNC
0.250 INCHES
20
3A
RIGHT-HAND
0.525 INCHES MINIMUM AND
0.625 INCHES MA