Mil Hishear Rivet Selection: hishear_alloy_steel_csk
MIL-STD-1759 hi-shear rivet (pin-collar) selection data — NAS525 alloy-steel 100° CSK and NAS529 alloy-steel flat-head hi-shear pins (95 000 psi shear, cadmium plate, 450°F), and NAS1583 Inconel-X 100° CSK and NAS1584 Inconel-X flat-head high-temperature pins (83 000–96 000 psi shear, passivate, 1200°F). Each record is a unique pin part number + grip-length combination. Required collar specs: NAS528 (2024-T4 aluminum) for alloy-steel pins, NAS1585 (Inconel) for 1200°F pins. Grip range encoded as 1/16-inch increments; all 5 nominal diameters (0.125–0.375 in, size -4 through -12) covered. Distinct from solid and blind rivets in the rivet_specifications table.
| fastener class | dash number | grip range max in (in) | grip range min in (in) | head style | material | nominal diameter 32nds (32nds of an inch) | nominal diameter in (in) | part number base | protective finish | required collar spec | shear strength psi (psi) | temp rating F (degF) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| hishear_alloy_steel_csk | NAS525-10-10 | 0.625 | 0.563 | 100deg_countersunk | Alloy steel | 10 | 0.312 | NAS525 | Cadmium plate | NAS528-10 | 95,000 | 450 |
| hishear_alloy_steel_csk | NAS525-10-12 | 0.75 | 0.689 | 100deg_countersunk | Alloy steel | 10 | 0.312 | NAS525 | Cadmium plate | NAS528-10 | 95,000 | 450 |
| hishear_alloy_steel_csk | NAS525-10-16 | 1 | 0.939 | 100deg_countersunk | Alloy steel | 10 | 0.312 | NAS525 | Cadmium plate | NAS528-10 | 95,000 | 450 |
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