Nut Self-locking Hexagon - MS20500-428
Description: Nut Self-Locking Hexagon
Part Number: MS20500-428
Product Overview
A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, cap.
Product Specification:
| Thread Class | : | 3B | |
| Thread Direction | : | Right-hand | |
| Locking Feature | : | Prevailing torque all metal design | |
| Nut Style | : | Hexagon | |
| Nut Height | : | 0.280" inches minimum and 0.328" inches maximum | |
| Width Across Flats | : | 0.430" inches minimum and 0.439" inches maximum | |
| Temp Rating | : | 1200.0 deg fahrenheit nominal | |
| Thread Series | : | UNJF | |
| Thread Quantity per Inch | : | 28 | |
| Nominal Thread Size | : | 0.250" inches | |
| Countersink Angle | : | 88.0 degrees nominal nut | |
| Bearing Surface Type | : | Chamfered | |
| Bearing Surface Finish | : | 125.0" micro inches | |
| Material | : | Steel corrosion resisting overall | |
| Precious Material and Location | : | All surfaces silver | |
| Precious Material | : | Silver | |
| Surface Treatment | : | Silver overall | |
| Surface Treatment Document and Classification | : | Ams 2410 assn std single treatment response overall |
Aircraft Eligibility
| • 0470 | (G, GCI, K, L, M, R, S, U) | |
| • GTSI0520 | (C, D, H, L, M, N) | |
| • I0470 | (C, D, E, F, H, L, M, N, S, U, V, V0) | |
| • I0520 | (A, B, BA, BB, C, CB, D, E, F, J, K, L, M, MB) | |
| • I0550 | (A, B, C, D, E, F, G, L, N, P, R) | |
| • LTSI0360 | (RB, MB, RB, SB) | |
| • TSI0520 | (AF, B, BB, BE, C, CE, D, DB, E, EB, G, H, J, JB, K, KB, L, LB, M, N, NB, P, R, T, UB, VB) | |
| • TSIO550 | (A, B, C, E, G, J, K, N, D, J, K, P, A, C) |
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