Howmet Fastening Systems
Howmet Fastening Systems
Phone: Sales +1 800 992 4444
Technical Support +1 310 784 6409
Email: HFSTechSupport@howmet.com
Website: www.hfs.howmet.com
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THREAD: AS8879
MATERIAL: Carbon or alloy steel, heat treated.
FINISH: Nut and retainer - Cadmium plated to fed. spec. AMS-QQ-P-416, Type I, Class 2, plus Kaylube molybdenum disulfide dry lubricant coated per AS5272, Type I.
FLOATABILITY: .015 radially from center min.
PROCUREMENT SPEC: NASM25027.
TEMPERATURE: 500°F
APPLICATION: For use with materials such as aluminium alloys, brass, copper and mild steel.
AVAILABILITY: Tooled.
INSTALATION DATA: Use Kaylock tool number KT7202 or KT7204.
Unit of Measure

Specifications

A - MAX

 N/A 0.040

B - MAX

 N/A 0.249

C - MIN

 N/A 0.168

E REF

 N/A 0.125

H - MAX

 N/A 0.195

J - MIN

 N/A 0.037

N - REF

 N/A 0.161

W ± .015

 N/A 0.312

Approx. Weight (LBS/100)

 N/A 0.200

Recommended Installation Hole Dia.
+.004
-.001

 N/A 0.250

Thread

 N/A 0.1380-40 UNJF-3B