This procurement is for NSN 3110003648114, Bearing, Ball, Annular, with multiple line items totaling 258 units, delivered to FB2029 OO ALC DDHU CNTRL RCV within 176 days after date of order. The item is source-controlled to a drawing, and approved sources are 25583, 50294, and 70854, all referencing part 571-9412-51. The solicitation is an RFQ available only via the provided link, and hard copies are not available. Items must meet the cited drawing requirements, and digitized drawings and military specifications/standards may be retrieved or ordered electronically. All responsible sources may submit a quote, and quotes may be submitted electronically.