THREAD: AS8879 MATERIAL: 7075 aluminum alloy per AMS-QQ-A-225/9. Aged to T73 condition per AMS277. FINISH:
KFN626-(*) - Anodized per MIL-A-8625, Type II, Class 2, color black and K76 lubricant.
KFN626-(*)A - Anodized per MIL-A-8625, Type II, Class 2, color black and cetyl alcohol lubricant per A/DET0013.
PERFORMANCE: NASM25027, except as follows:
1 cycle use.
Maximum locking torque and axial tensile strength to be met when tested with aluminum IVD coated titanium bolts with AS8879 threads having a reduced major diameter such as NAS6803 thru NAS6808.
Wrench torque as tabulated.
PACKAGING: Parts are normally supplied in bulk packaging. Add "S" after dash number for spindle packaged nuts for use with K-Fast® automatic tools. (Example: KFN626-4S). NOTES: "C" and "W" dimensions apply before forming self-locking feature.
Unit of Measure
Specifications
A - MAX
N/A0.743
B - MIN
N/A0.677
C - MIN
N/A0.561
D - MIN
N/A0.442
H - MAX
N/A0.415
M
N/A0.110-0.100
S - MIN
N/A0.160
W
N/A0.502-0.492
Axial Tensile Strength (LBS. MIN)
N/A9500
Locking Torque (LBF-IN)
N/A55.0-14.0
Approx. Weight (LBS/100)
N/A0.970
Finish
N/AAnodized per MIL-A-8625, Type II, Class 2, Color Black, Cetyl Alcohol Lubricant per A/DET0013
Howmet