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THREAD: AS8879
MATERIAL: 17-4PH stainless steel per AMS 5643 (UNS S17400).
FINISH: Nut & Washer
  • KFN532C(*) - Cadmium plate per AMS-QQ-P-416, Type II, Class 3, and cetyl alcohol lubricant.
  • KFN532DL(*) - Passivate per AMS2700 and Kaylube molybdenum disulfide dry lubricant coat per AS5272, Type I.
  • KFN532E(*) - Silver plate per AMS 2410 and cetyl alcohol lubricant.
PERFORMANCE: NASM25027, except as follows:
  • Axial tensile strength as tabulated.
  • Recommended seating torque as tabulated.
  • Locking torque as tabulated.
  • Thread locking and breakaway values shall apply for five reusability cycles on a titanium pin lubricated with cetyl alcohol.
APPLICATION: For use on standard to .032 oversize shank bolts.
MISALIGNMENT: Up to 7° maximum from centered position.
NOTES:
  1. Coat KFN532DL(*) parts with yellow dykem color. Coat 20% of nut minimum. Coating shall not affect self-locking torque.
  2. Parts are normally supplied in assembled (bonded) condition. To order individually, add "N" for nut only or add "B" for washer only.
Unit of Measure

Specifications

A - MIN

N/A 0.640

C - MIN

N/A 0.491

D

N/A 0.413-0.409

H - MAX

N/A 0.400

L

N/A 0.740-0.730

M

N/A 0.137-0.117

P - REF

N/A 0.496

R - REF

N/A 0.375

V

N/A 0.160-0.150

W

N/A 0.439-0.430

X - REF

N/A 0.480

Y

N/A 0.006

Axial Tensile Strength (LBS. MIN)

N/A 18000

Rec'm Seating Torque (IN-LBS)

N/A 360-440

Locking Torque (IN-LBS)

N/A 35.0-9.5

Approx. Weight (LBS/100)

N/A 1.750

Finish

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

Thread Type

N/A Unified

Configuration 1

N/A 6 Point

Configuration 2

N/A Self-Aligning

Simplified Material

N/A CRES

Strength

N/A 180KSI - 1250Mpa

Temperature

N/A 450°F - 235°C

Thread

N/A 0.3750-24 UNJF-3B