NAVSUP Weapon Systems Support Philadelphia intends a limited-source procurement for repair of 33 each of an attitude indicator, NSN 7R-6610-011011927-LC, P/N 622-3374-002, with delivery FOB origin. The approved sources are Air Shunt Instruments (1Y821) and Airtronics LLC (58078), and award is expected to one of these firms. The Government does not own the data or rights needed to purchase this item from additional sources, though responsible firms may submit a capability statement, proposal, or quotation. Non-approved firms must submit a Source Approval Request (SAR), and the procurement will not be delayed pending SAR approval. This is not a Total Small Business Set-Aside