Part Number NAS1189-4T12 Machine Screw
SKU: 5305004708098NAS11894T12 Machine Screw Datasheet
National aerospace standards part number NAS1189-4T12
Thread Direction:
Right-hand
Thread Length:
0.573 inches
Fastener Length:
Between 0.719 inches and 0.750 inches
Head Style:
Flat countersunk
Head Diameter:
Between 0.442 inches and 0.507 inches
Internal Drive Style:
Torque set
Thread Diameter:
0.250 inches
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Countersink Angle:
Between 99.0 degrees and 101.0 degrees
Screw Material:
Steel comp 4140 or steel comp 4340 or steel comp 8735 or steel comp 8740 or steel comp 6150
Screw Material Specification:
MIL-S-5626 military specification 1ST material response or MIL-S-5000 military specification 2ND material response or MIL-S-6098 military specification 3RD material response or MIL-S-6049 military specification 4TH material response or MIL-S-8503 military specification 5TH material response
Screw Surface Treatment:
Cadmium and chromate
Screw Surface Treatment Specification:
QQ-P-416, type 2, class 2 federal specification all treatment responses
Bearing Surface Of Head Surface Finish:
32.0 microinches
Shank Surface Finish:
32.0 microinches
Thread Surface Finish:
32.0 microinches
Specification Data:
80205-NAS1189 professional/industrial association standard
Manufacturer Cage:
17446
Trade Information:
- Schedule B: 7318152000
- SITC: 69421
- End Use: Iron and steel products, other
- NAICS: 332722
- USDA: 1
Bolts and bolts and their nuts or washers exported in the same shipment
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