National Item Identification Number
01-121-5495
011215495
5305-01-121-5495
5305011215495
National Stock Number
Item Name
SCREW,CAP,HEXAGON HEAD
Federal Supply Class
5305
Description
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.
Commercial and Government Entity Code (Supplier Data)
94259
WESTINGHOUSE ELECTRIC CORP
BETTIS ATOMIC POWER LABORATORY
814 PITTSBURGH MCKEESPORT BLVD
79
WEST MIFFLIN
PA
15122
412-476-5090
Reference Numbers (Part Numbers)
1159F58 ITEM 8
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNC
0.625 INCHES
11
2A
RIGHT-HAND
2.318 INCHES MINIMUM AND
2.500 INCHES MA
