Nas1057 Spacers [updated] [4K - HD]
However, in aerospace engineering, “spacers” used alongside NAS1057 bolts are often series (hexagonal standoffs/spacers) or custom NAS1066 / NAS1067 (bushings and sleeves).
The part number format for NAS1057 spacers allows engineers to quickly identify the dimensions. While specific military catalogs should be consulted for exact tolerances, the nomenclature generally follows a logic similar to: nas1057 spacers
| NAS1057 Dash | Bolt Dia (in) | Recommended NAS43 Spacer ID (in) | |--------------|---------------|----------------------------------| | -3 (3/16”) | 0.1875 | 0.189 – 0.191 | | -4 (1/4”) | 0.2500 | 0.252 – 0.254 | | -5 (5/16”) | 0.3125 | 0.314 – 0.316 | | -6 (3/8”) | 0.3750 | 0.377 – 0.379 | | -8 (1/2”) | 0.5000 | 0.502 – 0.504 | They ensure that the bolt shank is properly
In structural joints, spacers are often used in shear applications. They ensure that the bolt shank is properly aligned and that the clamping force is applied to the structural members rather than the spacer itself failing under compression. in aerospace engineering
The term "NAS" stood for National Aerospace Standard, indicating the high quality and specificity of these parts. Jack had always been fascinated by the blend of precision and ingenuity that aerospace engineering demanded, and here was a chance to incorporate a piece of that world into his own workshop.