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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 0.880-0.870

B - REF

N/A 0.763

D

N/A 0.601-0.597

H - MAX

N/A 0.670

L

N/A 1.105-1.095

M

N/A 0.160-0.140

R - REF

N/A 0.562

V

N/A 0.270-0.260

X - REF

N/A 0.733

Spline Size No.

N/A -22

Axial Tensile Strength (LBS. MIN)

N/A 32500

Rec'm Seating Torque (IN-LBS)

N/A 950-1075

Approx. Weight (LBS/100)

N/A 6.750

Nut Finish

N/A Kaylube Molybdenum Disulfide Dry Lubricant Coat per AS5272

Washer Finish

N/A Kaylube Molybdenum Disulfide Dry Lubricant Coat per AS5272

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 0.5625-18 UNJF-3B