H57 - Hex Nut Cres Steel On Howmet Aerospace

Howmet Fastening Systems
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THREAD: AS8879
MATERIAL: 305 corrosion resistant steel per AMS 5686 (UNS S30500).
FINISH: Passivated per AMS-QQ-P-35 and Kaylube molybdenum disulfide dry lubricant per AS5272, Type I.
PERFORMANCE: NASM25027
NOTES: Standard quality nuts interchangeable with MS 21045, MS 21046 and NAS1021 in various materials and finish conditions as applicable.

Unit of Measure

Item #	C - MIN	H - MAX	V - MIN	W	Approx. Weight (LBS/100)	Thread	Part Family

H57-06	N/A 0.339	N/A 0.188	N/A 0.109	N/A 0.313 in0.313-0.305	N/A 0.240	N/A 0.1380-32 UNJC-3B	N/A H57
H57-08	N/A 0.374	N/A 0.250	N/A 0.142	N/A 0.345 in0.345-0.336	N/A 0.380	N/A 0.1640-32 UNJC-3B	N/A H57
H57-3	N/A 0.413	N/A 0.250	N/A 0.142	N/A 0.376 in0.376-0.367	N/A 0.430	N/A 0.1900-32 UNJF-3B	N/A H57
H57-4	N/A 0.482	N/A 0.328	N/A 0.189	N/A 0.439 in0.439-0.430	N/A 0.750	N/A 0.2500-28 UNJF-3B	N/A H57
H57-5	N/A 0.552	N/A 0.360	N/A 0.195	N/A 0.502 in0.502-0.492	N/A 1.000	N/A 0.3125-24 UNJF-3B	N/A H57
H57-6	N/A 0.622	N/A 0.469	N/A 0.278	N/A 0.564 in0.564-0.553	N/A 1.600	N/A 0.3750-24 UNJF-3B	N/A H57

Unit of Measure