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  • H55038 - Nut - 12 Point, Self-Locking, 220 KSI
THREAD: AS8879
MATERIAL: A286 corrosion resistant steel per AMS5737 (UNS S66286).
FINISH:
  • H55038-(*) - Silver plate per AMS241.
  • H55038-(*) CD - Cadmium plate per AMS-QQ-P-416, Type II, Class 2, plus Kaylube molybdenum disulfide dry film lubricant coat per AS5272, Type I.
PERFORMANCE: NASM25027, except as follows:
  • Axial tensile strength as tabulated.
  • Temperature of 900°F.
NOTES:
100% Fluorescent penetrant inspection per ASTM E1417, except omit identification.
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A - MAX

B - MIN

C - MIN

D - MAX

H - MAX

S - MIN

V - MIN

W

Y

Z

Axial Tensile Strength (LBS. MIN)

Approx. Weight (LBS/100)

Thread

Part Family

N/A 0.350 N/A 0.310 N/A 0.277 N/A 0.220 N/A 0.230 N/A 0.080 N/A 0.015 N/A 0.251 in0.251-0.243 N/A 0.002 N/A 0.002 N/A 4980 N/A 0.250 N/A 0.1900-32 UNJF-3B N/A H55038
N/A 0.438 N/A 0.398 N/A 0.347 N/A 0.280 N/A 0.300 N/A 0.100 N/A 0.020 N/A 0.313 in0.313-0.305 N/A 0.002 N/A 0.002 N/A 8890 N/A 0.470 N/A 0.2500-28 UNJF-3B N/A H55038
N/A 0.531 N/A 0.491 N/A 0.419 N/A 0.343 N/A 0.385 N/A 0.120 N/A 0.035 N/A 0.376 in0.376-0.367 N/A 0.002 N/A 0.002 N/A 14100 N/A 0.840 N/A 0.3125-24 UNJF-3B N/A H55038
N/A 0.649 N/A 0.609 N/A 0.491 N/A 0.405 N/A 0.455 N/A 0.152 N/A 0.060 N/A 0.439 in0.439-0.430 N/A 0.002 N/A 0.002 N/A 20900 N/A 1.430 N/A 0.3750-24 UNJF-3B N/A H55038
N/A 0.750 N/A 0.705 N/A 0.631 N/A 0.473 N/A 0.520 N/A 0.168 N/A 0.070 N/A 0.564 in0.564-0.553 N/A 0.003 N/A 0.003 N/A 28300 N/A 2.470 N/A 0.4375-20 UNJF-3B N/A H55038
N/A 0.828 N/A 0.783 N/A 0.703 N/A 0.535 N/A 0.600 N/A 0.190 N/A 0.080 N/A 0.627 in0.627-0.616 N/A 0.003 N/A 0.003 N/A 37800 N/A 3.510 N/A 0.5000-20 UNJF-3B N/A H55038
N/A 0.938 N/A 0.893 N/A 0.775 N/A 0.597 N/A 0.680 N/A 0.230 N/A 0.080 N/A 0.690 in0.690-0.679 N/A 0.003 N/A 0.003 N/A 47900 N/A 4.830 N/A 0.5625-18 UNJF-3B N/A H55038
N/A 1.050 N/A 1.005 N/A 0.846 N/A 0.660 N/A 0.740 N/A 0.250 N/A 0.090 N/A 0.752 in0.752-0.741 N/A 0.004 N/A 0.003 N/A 59900 N/A 6.230 N/A 0.6250-18 UNJF-3B N/A H55038
N/A 1.230 N/A 1.185 N/A 1.058 N/A 0.785 N/A 0.900 N/A 0.310 N/A 0.110 N/A 0.940 in0.940-0.928 N/A 0.004 N/A 0.003 N/A 87000 N/A 11.060 N/A 0.7500-16 UNJF-3B N/A H55038
N/A 0.350 N/A 0.310 N/A 0.277 N/A 0.220 N/A 0.230 N/A 0.080 N/A 0.015 N/A 0.251 in0.251-0.243 N/A 0.002 N/A 0.002 N/A 4980 N/A 0.250 N/A 0.1900-32 UNJF-3B N/A H55038
N/A 0.438 N/A 0.398 N/A 0.347 N/A 0.280 N/A 0.300 N/A 0.100 N/A 0.020 N/A 0.313 in0.313-0.305 N/A 0.002 N/A 0.002 N/A 8890 N/A 0.470 N/A 0.2500-28 UNJF-3B N/A H55038
N/A 0.531 N/A 0.491 N/A 0.419 N/A 0.343 N/A 0.385 N/A 0.120 N/A 0.035 N/A 0.376 in0.376-0.367 N/A 0.002 N/A 0.002 N/A 14100 N/A 0.840 N/A 0.3125-24 UNJF-3B N/A H55038
N/A 0.649 N/A 0.609 N/A 0.491 N/A 0.405 N/A 0.455 N/A 0.152 N/A 0.060 N/A 0.439 in0.439-0.430 N/A 0.002 N/A 0.002 N/A 20900 N/A 1.430 N/A 0.3750-24 UNJF-3B N/A H55038
N/A 0.750 N/A 0.705 N/A 0.631 N/A 0.473 N/A 0.520 N/A 0.168 N/A 0.070 N/A 0.564 in0.564-0.553 N/A 0.003 N/A 0.003 N/A 28300 N/A 2.470 N/A 0.4375-20 UNJF-3B N/A H55038
N/A 0.828 N/A 0.783 N/A 0.703 N/A 0.535 N/A 0.600 N/A 0.190 N/A 0.080 N/A 0.627 in0.627-0.616 N/A 0.003 N/A 0.003 N/A 37800 N/A 3.510 N/A 0.5000-20 UNJF-3B N/A H55038
N/A 0.938 N/A 0.893 N/A 0.775 N/A 0.597 N/A 0.680 N/A 0.230 N/A 0.080 N/A 0.690 in0.690-0.679 N/A 0.003 N/A 0.003 N/A 47900 N/A 4.830 N/A 0.5625-18 UNJF-3B N/A H55038
N/A 1.050 N/A 1.005 N/A 0.846 N/A 0.660 N/A 0.740 N/A 0.250 N/A 0.090 N/A 0.752 in0.752-0.741 N/A 0.004 N/A 0.003 N/A 59900 N/A 6.230 N/A 0.6250-18 UNJF-3B N/A H55038
N/A 1.230 N/A 1.185 N/A 1.058 N/A 0.785 N/A 0.900 N/A 0.310 N/A 0.110 N/A 0.940 in0.940-0.928 N/A 0.004 N/A 0.003 N/A 87000 N/A 11.060 N/A 0.7500-16 UNJF-3B N/A H55038
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