QQ-N-286 Nickel-Copper-Aluminum Alloy, Wrought Uns N05500This specification covers all nickel-copper-aluminum alloy wrought forms formerly classified as class A. This alloy is designated under the Unified Numbering System for Metals and Alloys as UNS N05500. Except for cases where nonmagnetic properties are paramount, this alloy is intended to be age hardened prior to placing the material in service.

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QQ-N-286G TABLE VIII. Tolerances on diameter or distance between parallel faces of cold

drawn rod and bar.

Ordered diameter or distance between parallel faces (inches)		Tolerances (inches)
		Plus	Minus
Rounds	Under �	0	0.003
	� to 15/16, incl	0	0.002 1/
	Over 15/16 to 115/16, incl	0	0.003 1/
	Over 115/16 to 2�, incl	0	0.004 1/
	Over 2� to 3, incl	0	0.005 1/
	Over 3 to 3�, incl	0	0.006 1/
	Over 3� to 4, incl	0	0.007 1/
Hexagons	Up to 2, incl	0	0.009

1/ For cold drawn, age hardened, bright finish shafting, an additional minus tolerance of 0.002 inch will be permitted (see 6.7.2).

TABLE IX. Permissible variations in length of bar and rod, all conditions.

length to 8

1/ For hot finished sections weighing over 25 pounds per lineal foot and for smooth forged products, all sections, short lengths down to 2 feet may be furnished.

2/ Other nominal lengths with a specified range of not less than 2 feet, with no shorts allowed, may also be furnished.

3/ For cold drawn rod and bar under � inch in diameter or distance across flats ordered to nominal or stock lengths with a 2 foot range, at least

93 percent of such material shall be within the range specified; the balance may be in shorter lengths but in no case shall lengths less than

4 feet be furnished.

4/ For diameters over 8 inches, the tolerance shall be plus � inch minus 0.