Part Number NAS1189-4R12 Machine Screw

SKU: 5305015782172

NAS11894R12 Machine Screw Datasheet

National aerospace standards part number NAS1189-4R12
Thread Direction:
Right-hand
Thread Length:
0.644 inches
Fastener Length:
0.750 inches
Head Style:
Flat countersunk
Head Diameter:
0.325 inches
Locking Feature:
Patch or pellet or strip
Internal Drive Style:
Torque set
Thread Diameter:
0.250 inches
Thready Qty Per Inch (tpi):
28
Countersink Angle:
Between 99.0 degrees and 101.0 degrees
Part Name Assigned By Controlling Agency:
Screw self locking flat 100 degrees head full thread
Screw Material:
Iron alloy 660 and titanium alloy uns R56400
Manufacturer Cage:
80205

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