Vertical Sheave Assembly

The Department of the Navy Naval Supply Systems Command has published a Special Notice regarding the procurement of a Vertical Sheave Assembly (Part Number F183153) for the USS Manchester. This notice was posted on February 25, 2026, and represents an exception to fair opportunity procurement procedures. The vertical sheave assembly is a critical component of the ship's platform lift system, functioning as a grooved wheel on a vertical axle that guides and redirects wire ropes and cables for various shipboard applications. The procurement is being conducted under solicitation number R200955325A199 through Naval Supply Systems Command Fleet Logistics Center San Diego. This special notice indicates that the government intends to pursue a non-competitive procurement action based on the determination that only one responsible source exists for this particular component.

The primary objective of this procurement is to obtain a direct replacement vertical sheave assembly to address faulty sheaves currently onboard the USS Manchester. The deadline for submission of proposals or expressions of interest is March 3, 2026, with a required delivery date of December 10, 2025, indicating this is a time-sensitive requirement. The justification for non-competitive procurement is based on the finding that the part is exclusively manufactured as an integral component of the platform lift system contract, with no other companies currently contracted to manufacture this specific assembly. The government has determined under 10 U.S.C. 3406(c)(5) that no brand name determination applies and no other procurement restrictions such as exclusive licensing agreements are preventing full and open competition. While this special notice does not employ a set-aside for small businesses or other designated groups, interested parties should monitor the procurement record for any subsequent competitive opportunities or modifications to the acquisition strategy.