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THREAD: AS8879
MATERIAL:
  • Nut - 7075 aluminum alloy per AMS-QQ-A-225/9. Aged to T73 condition.
  • Seal - Teflon per MIL-P-19468.
FINISH: Nut - Anodize per MIL-A-8625, Type II, Class 2, color black, plus K76 lubricant.
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 reduced major diameter.
  • 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: KFN627-4S.
NOTES:
  1. "C" and "W" dimensions apply before forming self-locking feature.
  2. Nut design incorporates positive retention of the sealing ring.
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Item #

A - MAX

B - MIN

C - MIN

D

H - MAX

M

P

Q

W

Max. Locking Torque

Axial Tensile Strength (LBS. MIN)

Min. Wrench Torque (IN-LBS)

Approx. Weight (LBS/100)

Thread

N/A 0.510 N/A 0.254 N/A 0.348 N/A 0.261-0.256 N/A 0.280 N/A 0.100-0.090 N/A 0.343-0.337 N/A 0.045-0.025 N/A 0.313-0.305 N/A 20.000 lb·in N/A 3200 N/A 85 N/A 0.170 N/A 0.2500-28 UNJF-3B
N/A 0.636 N/A 0.317 N/A 0.419 N/A 0.323-0.318 N/A 0.325 N/A 0.100-0.090 N/A 0.425-0.419 N/A 0.045-0.025 N/A 0.376-0.367 N/A 30.000 lb·in N/A 5200 N/A 145 N/A 0.350 N/A 0.3125-24 UNJF-3B
N/A 0.720 N/A 0.379 N/A 0.491 N/A 0.391-0.386 N/A 0.365 N/A 0.100-0.090 N/A 0.508-0.502 N/A 0.055-0.035 N/A 0.439-0.430 N/A 40.000 lb·in N/A 7000 N/A 240 N/A N/A 0.3750-24 UNJF-3B
N/A 0.510 N/A 0.254 N/A 0.348 N/A 0.261-0.256 N/A 0.280 N/A 0.100-0.090 N/A 0.343-0.337 N/A 0.045-0.025 N/A 0.313-0.305 N/A 20.000 lb·in N/A 3200 N/A 85 N/A 0.170 N/A 0.2500-28 UNJF-3B
N/A 0.636 N/A 0.317 N/A 0.419 N/A 0.323-0.318 N/A 0.325 N/A 0.100-0.090 N/A 0.425-0.419 N/A 0.045-0.025 N/A 0.376-0.367 N/A 30.000 lb·in N/A 5200 N/A 145 N/A 0.350 N/A 0.3125-24 UNJF-3B
N/A 0.720 N/A 0.379 N/A 0.491 N/A 0.391-0.386 N/A 0.365 N/A 0.100-0.090 N/A 0.508-0.502 N/A 0.055-0.035 N/A 0.439-0.430 N/A 40.000 lb·in N/A 7000 N/A 240 N/A N/A 0.3750-24 UNJF-3B
1 - 6 of 6 | Results Per Page | View | Unit of Measure
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