Material Ordering Data QQ-N-281 Summary

This is a Material Ordering Data (MOD) sheet specifying requirements for nickel-copper alloy bar, rod, plate, sheet, strip, wire, forgings, and structural and special shaped sections. The specification referenced is QQ-N-281D, dated August 26, 1974, with Amendment 2 dated October 23, 1985, with latest validation through December 23, 2020. The material is procured under IDN N4523A 6169-8343 with ICN 38JCD59628, KO: F01, and KOI: 001.

The ordering data specifies Class A, Form 1 bar and rod with the following requirements: 9-inch diameter, hot finished condition (as hot finished or stress relieved), and forging quality surface finish. Yield strength determination shall be at 0.1 percent offset with tensile strength at 0.2 percent offset. Ultrasonic inspection and liquid penetration testing are not required. The required length is 4 feet with cut-to-length specifications. Standard edges are required, and Level C preservation, packaging, and marking per MIL-STD-129 is mandated with reference to DLA Procurement Note C20. The specific product is a nickel round bar, NRD 9" x 48" MONEL 400. All unit, intermediate, and shipping containers must be marked in accordance with MIL-STD-129.