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THREAD: AS8879
MATERIAL: A286 corrosion resistant steel per AMS5731 or AMS5734 (UNS S66286).
HEAT TREAT: After forming, nuts shall be precipitation heat treated to meet the hardness of Rc 37-45.
FINISH:
    Passivate per AMS-QQ-P-35 and dry film lubricant coat per AS1701, Type VI.
    Prior to applying the film lubricant. Nuts may be coated with copper or
    Nickel plate .001 min. thickness. Dimensions apply before coating
PERFORMANCE: AS4393, except as follows:
  • Bake at 800°F +/-15°F in Lieu of 1200°F +/- 15°F for nuts tested after bake.
  • Rc hardness as noted.
NOTES:
  • Fluorescent penetrant inspection per ASTM E1417
  • Unless otherwise specified:
    1. Break sharp edges .003 - .015
    2. Surface texture of 125 microinches.
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Item #

A - MAX

B - MIN

D - MAX

H

S - MIN

V

W - NOM

X

Y

Approx. Weight (LBS/100)

Thread

H54205-3 N/A 0.340 N/A 0.310 N/A 0.220 N/A 0.250-0.235 N/A 0.125 N/A 0.057-0.035 0.057 Inch N/A 0.2500 N/A 0.006 N/A 0.004 N/A 0.200 N/A 0.1900-32 UNJF-3B
H54205-4 N/A 0.430 N/A 0.400 N/A 0.280 N/A 0.322-0.307 N/A 0.185 N/A 0.057-0.045 0.057 Inch N/A 0.3125 N/A 0.007 N/A 0.005 N/A 0.400 N/A 0.2500-28 UNJF-3B
H54205-5 N/A 0.515 N/A 0.485 N/A 0.345 N/A 0.360-0.345 N/A 0.195 N/A 0.068-0.055 0.068 Inch N/A 0.3750 N/A 0.008 N/A 0.005 N/A 0.700 N/A 0.3125-24 UNJF-3B
H54205-6 N/A 0.589 N/A 0.558 N/A 0.405 N/A 0.458-0.443 N/A 0.250 N/A 0.100-0.075 0.100 Inch N/A 0.4375 N/A 0.009 N/A 0.005 N/A 1.000 N/A 0.3750-24 UNJF-3B
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