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
Print Back
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 0.090

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