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:
Nut and cradle - INCO 718 per AMS 5662 or AMS 5663.
Roll Pin - 300 series corrosion resistant steel.
FINISH:
Roll Pin - Passivate per AMS2700.
  • F53942-(*)

    • Nut - Cadmium plated per AMS-QQ-P-416, Type II, Class 2 and Kaylube molybdenum disulfide dry lubricant coated per AS5272, Type I.
    Cradle - Cadmium plated per AMS-QQ-P-416, Type II, Class 2.
  • F53942-(*)X

    • Nut and cradle - Cadmium plated per AMS-QQ-P-416, Type II, Class 2.
  • F53942-(*)DL

    • Nut and cradle - Kaylube molybdenum disulfide dry lubricant per AS5272, Type I.
  • F53942-(*)AK

    • Nut - Kaylube molybdenum disulfide dry lubricant per AS5272, Type I.
    Cradle - Aluminium coat per NAS 4006.
  • F53942-(*)A

    • Nut and cradle - Aluminium coat per NAS 4006.
  • F53942-(*)S

    • Nut - Silver plate per AMS 241.
    Cradle - Passivate per AMS2700.
PERFORMANCE: NASM25027, as applicable per NAS 577.
FLOATIBILITY: .028 min. on "X" axis. Vertical --- .016 max.
INSPECTION: 100% fluorescent inspection per ASTM-E1417. No identification required.
Unit of Measure

Specifications

A

 N/A 0.635-0.615

B - MAX

 N/A 0.406

C

 N/A 0.130-0.120

D

 N/A 0.291-0.281

R

 N/A 0.2640-0.2625

S

 N/A 0.320-0.310

W - MIN

 N/A 0.518

Install Hole Dia. - REF

 N/A 0.535-0.531

Axial Tensile Strength (LBS. MIN)

 N/A 7200

Max. Weight (LBS/100)

 N/A 1.50

Nut Finish

 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 and Kaylube Molybdenum Disulfide Dry Film Lubricant Coat per AS5272, Type I

Cradle Finish

 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2

Thread

 N/A 0.2500-28 UNJF-3B