National Item Identification Number
01-170-3821
011703821
5305-01-170-3821
5305011703821
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)
44114
B A E SYSTEMS LAND & ARMAMENTS L P
ARMAMENT SYSTEMS DIV
4800 E RIVER RD
MINNEAPOLIS
MN
55421
763-572-5347
53711
Reference Numbers (Part Numbers)
FF-S-86
3176207-C-623
3176207-C-623
3176207-C-623
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNC
0.312 INCHES
18
3A
RIGHT-HAND
0.859 INCHES MINIMUM AND
1.000 INCHES MA