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MATERIAL:
  • Nut: 1050 Carbon Steel per AMS 5085, or Alloy Steel per MIL-S-6758 or AMS 6348, AMS 6351 (4130). Heat treat to 160 Ksi min ultimate tensile strength, HRc 45 max
  • Bracket: 1050 Carbon Steel per AMS 5085 or ASTM-A-682, heat treat to HRc 40-50
  • Sleeve: 304 Cres per AMS 5639 or AMS-QQ-S-763 or 305 Cres per AMS 5514
FINISH CODE:
  • Bracket, Sleeve & Nut: Cad plate per AMS QQ-P-416, Type II, Class 2
  • Nut: Dri-Film Lube per MIL-PRF-46010
Unit of Measure

Nut Type

Locking

Thread Size

MJ3 x 0.5-4H6H

Lead

Metric

Ø M +.000/-.006

0.217 Inch
Ø Q +.004/-.001 - Soft1 0.218 Inch
Ø Q +.004/-.001 - Hard2 0.218 Inch

Ø R1 +.020/-.000

0.312 Inch

Ø R2 ±.005

0.307 Inch
Ø U +.005/-.0023 0.194 Inch

W

0.290 Inch

X ±.017

0.407 Inch

Z ±.003

0.231 Inch

G1

0.592 - 0.622 Inch

G2

0.631 - 0.661 Inch

K

0.657 Inch

N

0.053-0.075 Inch

L - Nut Height

0.380 Inch

Y - Thread Relief

0.242 Inch

Thread Type

Metric MJ
  • 1 Soft- dimension for Soft Aluminum Alloys & Plastics
  • 2 Hard - dimension for Hard Aluminum Alloys & Steel
  • 3 For Grip code F thru P, the Ø “U" minimum may be .224 as required for manufacturing. Size .190-32 UNJF-3B only.