Scr 4-40 pht stzc 1/4 pch
No other part numbers with same form, fit, and function found.
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
NSN 5855-01-020-7982
NSN 5950-01-657-7599
NSN 6135-01-100-3593
NSN 5935-01-330-5433
NSN 5945-00-211-2613
NSN 5855-01-562-2005
NSN 6130-01-190-9526
NSN 6105-00-027-9061
NSN 5855-01-549-3666
NSN 5835-01-381-4452
NSN 6105-01-608-3974
NSN 5950-00-196-1429