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0.559in. ⁓9/16"
0.750in. ⁓3/4"
flat countersunk
slot
0.312in. ⁓5/16"
18
82.0 degrees
screw, machine flathead plastic
plastic polyamide
item is a torlon countersunk flat head machine screw; material: GENERAL-Purpose POLYAMIDE-Imide (torlon) grade 4203 = extruded rod, and 4203l = injection molded; workmanship - screws shall show no evidence of cross threading or multilation; thread length - full form threads shall extend to within two threads of the bearing surface of the head or closer if practicable; marking shall be in accordance with MIL-STD-130; quality assurance provisions
unc
4Y054-003-008913 manufacturers specification control
4Y054-003 008913
1PG
Unc
18
Flat countersunk
0.559 inches
Schedule B number: 3926909987
nmfc 096640
Articles of plastics & articles of other materials of heading 3901 to 3914
FSC 5305 ⁓ Screws
unc thread series item is a torlon countersunk flat head machine screw; material: general-purpose polyamide-imide (torlon) grade 4203 = extruded rod, screw, machine flathead plastic 18 thread quantity per inch flat countersunk head style 0.559" thread length
Nothing similar to this part number was found in our inventory
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.