GASKET, SPIRAL WOUND

This contract is for the procurement of 40 spiral wound gaskets, identified by NSN 5330-01-444-8347, with a delivery requirement of 168 days after receipt of order. The gaskets must be compatible with ANSI B16.5 and feature a graphite filler with a Nickel Alloy 600 construction. Specific dimensional requirements include an outside diameter between 8.188 and 8.281 inches and an aperture diameter between 6.859 and 6.891 inches. For temperatures up to 900 degrees Fahrenheit, the gaskets must be made of nickel-chromium-iron alloy per ASTM B168, though the use of CRES in place of carbon steel for outer rings is acceptable. Compliance requires permanent marking of the outer ring with the manufacturer name, pipe size, pressure series, material, and relevant ANSI and MIL standards. Packaging must be in medium duty, waterproof, greaseproof, opaque bags per MIL-DTL-117 to prevent UV deterioration, and each unit must be labeled with the NSN, contract number, lot number, and CAGE codes. The contract strictly prohibits the use of class I ozone depleting chemicals and the intentional addition of mercury. Quality assurance and sampling must adhere to MIL-STD-1916 or ASQ H1331 standards.