Tube seamless nickel copper alloy

The Department of the Navy Naval Sea Systems Command seeks procurement of seamless nickel-copper alloy tubing, with the current proposal deadline of June 24, 2026, following multiple extensions and amendments. The procurement is a Total Small Business set-aside.

Place of performance is Kittery, Maine at Portsmouth Naval Shipyard. The product is 1-inch nominal pipe (1.315-inch outer diameter, 0.179-inch nominal wall thickness, Schedule 80) manufactured to MIL-DTL-23520 and MIL-DTL-23520E specifications with Class IV finish (descaled or bright annealed). Quantities vary across RFQ revisions: primary requirements range from 19,656 linear inches to 1,638 linear feet, with delivery required 50 weeks after receipt of order. Freight is included in pricing.

All finished pipe must undergo 100 percent ultrasonic inspection of outside diameter surface per MIL-DTL-23520 and MIL-STD-2132, with liquid penetrant examination required. Portsmouth Naval Shipyard personnel will witness ultrasonic testing; vendors must notify the purchasing agent four weeks in advance. Each piece requires permanent marking with material designator code "NCF," manufacturer identification, vendor traceability number, and specification-required information. Packaging must use 2-inch-thick wooden planks with metal strapping for pipe 6 inches in outside diameter or larger.

Vendors must be registered in SAM and submit evidence of three relevant projects completed within the past five years. Quality management systems must comply with MIL-I-45208 or ISO 9001/9002/9003 with STR-ISO 9000 Supplement. Evaluation uses Lowest Price Technically Acceptable methodology, with evaluation factors of technical capability, delivery schedule, price, and past performance. Award will be made on an "All or None" basis. Payment options include WAWF or government commercial purchase card (up to $100,000). The NAICS code is 331210; PSC is 4710. Recent amendments effective 6/18/26 changed dimensions; 6/10/26 amendment allowed finish E options.