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THREAD: AS8879
MATERIAL: Nut and retainer - A286 corrosion resistant steel per AMS5525 and AMS5732 (UNS S66286), heat treated.
FINISH:
  • Nut - Passivated per AMS2700 and Kaylube molybdenum disulfide dry film lubricant coat per AS5272, Type I.
  • Retainer - Passivated per AMS2700.
PERFORMANCE: NASM25027.
APPLICATION: For use with materials such as aluminium alloys, brass and copper.
TEMPERATURE: 500°F
NOTES:
  1. Installation data: use Kaylock tool number KT7202, or KT7204
  2. FLOATABILITY: .015 min. radially from centered position.
  3. Proper installation tool must fit over "W" dimension.
"W" dimension may be elliptical shape within tolerance after assembly of nut into retainer.
Unit of Measure

A - MAX

N/A 0.090

B - MAX

N/A 0.374

C - MIN

N/A 0.280

E REF

N/A 0.160

H - MAX

N/A 0.279

J - MIN

N/A 0.047

N - REF

N/A 0.296

W ± .015

N/A 0.437

Approx. Weight (LBS/100)

N/A 0.560

Recommended Installation Hole Dia.
+.004
-.001

N/A 0.375

Thread

N/A 0.2500-28 UNJF-3B