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THREAD: AS8879
MATERIAL:
  • Nut - A286 corrosion resistant steel per AMS 5732 or AMS 5736.
  • Washer -17-4PH stainless steel per AMS 5643.
HEAT TREAT: Washer - Aged to H 1025 condition.
FINISH:
  • KFN616-(*)
    Nut - KFN616-(*)A - Silver plate per AMS2410 and cetyl alcohol lubricant.
    Washer - KFN616-(*)W - Silver plate per AMS2410.
  • KFN616D(*)

    • Nut - KFN616D-(*)A - Kaylube molybdenum disulfide dry lubricant coated per AS5272.
    Washer - KFN606-(*)W - Cadmium plate per AMS-QQ-P-416, Type II, Class 3.
  • KFN616DL(*)

    • Nut - KFN616D(*)A - Kaylube molybdenum disulfide dry lubricant coated per AS5272.
    Washer - KFN606DL(*)W - Kaylube molybdenum disulfide dry lubricant coated per AS5272.
PERFORMANCE: NASM25027, except as follows:
  • Axial tensile strength as tabulated.
  • 5 cycle reusability.
APPLICATION:
  1. For use on sloped surfaces up to 7 degrees maximum.
  2. For heavy duty washer refer to KFN616-(*)NSW.
  3. Recommended seating torque values for use with pins or bolts in tension applications.
NOTES:
  1. Special wrench configuration, for use only with Kaylock WS603 socket.
  2. Parts are supplied in assembled condition. To order individually, see finish codes.
Unit of Measure

Specifications

A

 N/A 0.865-0.855

B - REF

 N/A 0.654

D

 N/A 0.538-0.534

H - MAX

 N/A 0.523

L

 N/A 0.915-0.905

M

 N/A 0.152-0.132

R - REF

 N/A 0.500

V

 N/A 0.235-0.225

X - REF

 N/A 0.645

Spline Size No.

 N/A -20

Axial Tensile Strength (LBS. MIN)

 N/A 25500

Rec'm Seating Torque (LBF-IN)

 N/A 725-825

Approx. Weight (LBS/100)

 N/A 5.930

Nut Finish

 N/A Silver Plate per AMS 2410 and Cetyl Alcohol Lubricant

Washer Finish

 N/A Silver Plate per AMS 2410

Thread Type

 N/A Unified

Configuration 1

 N/A 8 Spline

Configuration 2

 N/A Self-Aligning

Simplified Material

 N/A CRES

Strength

 N/A 125KSI - 900Mpa

Temperature

 N/A 450°F - 235°C

Thread

 N/A 0.5000-20 UNJF-3B