Rhinestahl Corporation

Rhinestahl Corporation, a for-profit small business manufacturer headquartered in Mason, Ohio, supplies precision aviation engine tooling, aircraft fixtures, and ground support equipment to the Department of Defense as a prime contractor on nearly 3,800 awards, competing predominantly in full-and-open procurement and on small business set-asides with no SBA designations such as 8(a) or HUBZone.

Rhinestahl manufactures concrete aviation logistics components: engine fixtures (main, bearing, grinding, masking, gas support variants), hydraulic and mechanical pullers, aircraft adapters, torque wrenches and tool sets, hose preservation kits, test equipment, and depot-level support equipment for military aviation platforms including the F110-GE-129 engine, CH-53K helicopter, and F-15EX aircraft. Representative prime work includes a $5.6 million delivery order from the Oklahoma City Air Logistics Complex (awarded December 2025) for organizational and intermediate-level F110 engine support equipment under the company's DLA Aviation basic ordering agreement; a $1.26 million definitive contract from Naval Air Warfare Center (May 2026) for hoisting beams; and recurring $50,000–$170,000 delivery orders from DLA Aviation for wrench sets, fixtures, and adapters spanning multiple fiscal years. The source carries no SCI-reportable service contracts, confirming Rhinestahl operates as a products and equipment manufacturer rather than a service provider.

Customer concentration is extreme and reflects a logistics-focused supplier model. DLA Aviation dominates with 2,952 awards valued at $1.07 billion (74% of combined potential value and 77% of award count). The Oklahoma City Air Logistics Complex contributes 21 awards worth $313.9 million (22% of potential value), largely from F110 engine support equipment contracts. Naval Air Systems Command Naval Air Warfare Center places 76 awards worth $40.1 million. Naval Supply Systems Command issues 268 smaller orders totaling $7.9 million. Together, these four customers account for 93% of award count and 99% of potential value. The dollar concentration diverges sharply from count concentration—DLA Aviation's volume of small delivery orders (median under $20,000) contrasts with the Oklahoma City Air Logistics Complex's anchor contracts valued at $335,000–$2.36 million each.

Rhinestahl operates under two primary Basic Ordering Agreements: a $9.9 million DLA Aviation BOA (awarded March 1, 2023, through February 28, 2028) authorizing aviation parts and equipment across multiple military branches, which has generated 1,146 task orders worth $25.8 million; and a separate DLA Aviation vehicle (SPE4A113G0002) with 1,136 task orders worth $26.5 million. A third BOA (SPE4A123G0002) carries 624 task orders valued at $13.1 million. Additionally, Rhinestahl holds two recent single-award Indefinite Delivery Contracts: one from DLA Aviation (May 26, 2026) for aircraft engine lift bar fixtures valued at $2.5 million through May 2031, and a smaller $350,000 Aviation IDC (June 29, 2026) through June 2031, both set aside for Total Small Business. Rhinestahl competes in full-and-open procurement on the majority of orders; roughly 15–20% of visible awards carry Total Small Business set-asides, but the vendor does not hold SBA 8(a), HUBZone, SDVOSB, or WOSB certifications.

Award velocity has remained steady at 197–234 awards per year over the past five years, with 118 awards recorded in 2026 (year-to-date through July). A recompete cliff of $16.9 million in combined potential value spans awards completing in the next twenty-four months, representing modest renewal exposure given the size of the DLA Aviation BOA ecosystem and recurring nature of delivery-order demand.

Rhinestahl operates as a prime on 100% of documented federal awards (3,828 primes, 19 subs). Sub-award activity is minimal: four named sub-awards carry small-value assignments from Boeing (advanced pilot training aerospace support), Amentum Services (backshop aircraft maintenance), and General Electric (F-15EX propulsion system and improved turbine engine development work), indicating Rhinestahl functions as a feeder supplier to integrators on specialized engine and airframe programs rather than as a primary subcontracting conduit. The source identifies a subsidiary, Hydro Systems KG, suggesting possible integration of hydraulic component production, though no separate award footprint is documented.

The company's concentration on DLA Aviation reflects Rhinestahl's specialization in military aviation sustainment logistics: 1,468 of approximately 3,100 top-NAICS awards fall under aircraft maintenance and repair shop specialized equipment (PSC 4920), 414 under hand tools, and 303 under gas turbines and jet engines. Order sizes cluster below $100,000 (the bulk of visible delivery orders span $1,000–$55,000), with occasional larger contracts for engine support equipment or integrated tooling kits reaching $200,000–$2 million. All pricing is firm fixed-price; delivery locations span Mason and Dudley, Massachusetts; West Lynn, Massachusetts; South Windsor, Connecticut; and overseas performance in Germany (for Air Force Europe and Africa). Rhinestahl's federal contracting record begins in 2009 and spans seventeen years of sustained small-business supplier relationships with the defense logistics enterprise, positioning the company as a legacy vendor embedded in DLA Aviation's recurring procurement cycles for aviation ground support and depot-level equipment.

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