MATERIAL: Alloy steel, AMS6304, AMS6485, and AMS 6487. Heat treated 48HRC max.

FINISH :
  • DCE 45279-3 – Cadmium plate – AMQ-QQ-P416 Type II, Class 2, soluble lubricant.
  • DCE 45279-3M – Cadmium plate – AMS-QQ-P416 Type II, Class 2, dry film lubricant.
PERPENDICULARITY: Bearing surface shall be normal with pitch diameter of thread within X when checked in accordance with procurement specification.

PERFORMANCE : NASM 8984.

THREADS: AS8879 before lubrication.

NOTES:
  1. Wrenches available from Snap-on tools corporation.
  2. Spline Dimensions – per MS33787.
  3. Dry Film Lubricant, when specified, is applied over the Cadmium Plate such parts meet salt spray requirements of AMS-QQ-P-416, Type II.
Contact Alcoa for the diameter/type in manufacturing.
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Item #

A - MAX

B - MIN

D - MAX

D - MIN

H - MAX

S - MIN

V - MAX

Thread

DCE 45279-3 N/A 0.377 Inch N/A 0.337 Inch N/A 0.220 Inch N/A 0.190 Inch N/A 0.250 Inch N/A 0.095 Inch N/A 0.025 Inch N/A 0.1900-32 UNJF-3B
DCE 45279-4 N/A 0.481 Inch N/A 0.441 Inch N/A 0.280 Inch N/A 0.250 Inch N/A 0.315 Inch N/A 0.125 Inch N/A 0.033 Inch N/A 0.2500-28 UNJF-3B
DCE 45279-5 N/A 0.588 Inch N/A 0.548 Inch N/A 0.342 Inch N/A 0.312 Inch N/A 0.405 Inch N/A 0.156 Inch N/A 0.041 Inch N/A 0.3125-24 UNJF-3B
DCE 45279-6 N/A 0.701 Inch N/A 0.661 Inch N/A 0.405 Inch N/A 0.375 Inch N/A 0.490 Inch N/A 0.188 Inch N/A 0.049 Inch N/A 0.3750-24 UNJF-3B
DCE 45279-7 N/A 0.821 Inch N/A 0.771 Inch N/A 0.473 Inch N/A 0.438 Inch N/A 0.570 Inch N/A 0.219 Inch N/A 0.057 Inch N/A 0.4375-20 UNJF-3B
DCE 45279-8 N/A 0.933 Inch N/A 0.883 Inch N/A 0.535 Inch N/A 0.500 Inch N/A 0.650 Inch N/A 0.250 Inch N/A 0.065 Inch N/A 0.5000-20 UNJF-3B
DCE 45279-9 N/A 1.041 Inch N/A 0.991 Inch N/A 0.597 Inch N/A 0.562 Inch N/A 0.730 Inch N/A 0.281 Inch N/A 0.073 Inch N/A 0.5625-18 UNJF-3B
DCE 45279-10 N/A 1.154 Inch N/A 1.104 Inch N/A 0.660 Inch N/A 0.625 Inch N/A 0.810 Inch N/A 0.313 Inch N/A 0.081 Inch N/A 0.6250-18 UNJF-3B
DCE 45279-12 N/A 1.375 Inch N/A 1.325 Inch N/A 0.785 Inch N/A 0.750 Inch N/A 0.980 Inch N/A 0.375 Inch N/A 0.098 Inch N/A 0.7500-16 UNJF-3B
DCE 45279-14 N/A 1.592 Inch N/A 1.542 Inch N/A 0.910 Inch N/A 0.875 Inch N/A 1.140 Inch N/A 0.438 Inch N/A 0.114 Inch N/A 0.8750-14 UNJF-3B
DCE 45279-16 N/A 1.810 Inch N/A 1.760 Inch N/A 1.035 Inch N/A 1.000 Inch N/A 1.300 Inch N/A 0.500 Inch N/A 0.130 Inch N/A 1.0000-12 UNJF-3B
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