AIA/NAS 671-2010 pdf download NUT, PLAIN, HEXAGON, SMALL PATTERN, NONSTRUCTURAL
MATERIAL: CARBON STEEL, 55 KSI UTS MINIMUM. THE SULFUR OR PHOSPHOROUS CONTENT SHALL NOT BE GREATER THAN .050 BY WEIGHT. OPTIONAL MATERIALS: 1 2L1 4 (UNS G1 21 44) PER ASTM A 1 08 AND 1 1 L37 (UNS G11 374) PER AMS5020.
STEEL, CRES, 303 (UNS S30300) PER ASTM A 582/A 582M
BRASS, 462 ALLOY (UNS C46200) PER QQ-B-B37
BRASS, PER ASTM B 21 /B 21 M (UNS C46200) OR ASTM B 1 24/B 1 24M (UNS C46400)
FINISH: STEEL, CARBON-CADMIUM PLATE PER AMS-QQ-P-41 6, TYPE 2, CLASS 2.
STEEL, CRES-PASSIVATE PER AMS2700, METHOD 1 , CLASS 4.
BRASS-CADMIUM PLATE PER AMS-QQ-P-41 6, TYPE 2, CLASS 2.
CODE: LETTER “B” BETWEEN BASIC NUMBER AND DASH NUMBER INDICATES BRASS, CADMIUM PLATED.
LETTER “C” BETWEEN BASIC NUMBER AND DASH NUMBER INDICATES CRES.
EXAMPLE OF PART NUMBER:
NAS671 -3 = STEEL CADMIUM PLATED NUT
NAS671 B3 = BRASS CADMIUM PLATED NUT
NAS671 C3 = CRES NUT PASSIVATED
THREADS: THREADS SHALL BE IN ACCORDANCE WITH AS8879.

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