Norman Filter Company, L.L.C.

Norman Filter Company, L.L.C., doing business as Norman Filter Co LLC, is an AS9100-certified manufacturer of hydraulic filter housings, elements, and filtration systems that operates as a prime contractor on 468 defense and aerospace purchase orders (96% of recent awards) and holds subcontracts with Boeing, Lockheed Martin, and Huntington Ingalls for flight vehicle and naval propulsion filtration. The company is a Department of Transportation-certified Disadvantaged Business Enterprise (DBE) based in Bridgeview, Illinois, and competes predominantly in the full-and-open market rather than under formal small business set-asides, though it has benefited from Total Small Business designations on select awards and holds two Indefinite Delivery Contracts (IDCs) with the Defense Logistics Agency valued at $249,999.99 and $250,000, both total small business set-asides.

Norman Filter's customer base is heavily concentrated in defense logistics and naval supply. The top five funding agencies account for 86% of the award count and 76% of combined potential value, led by the Department of the Navy Naval Sea Systems Command (201 awards, $966 thousand combined potential value), the Defense Logistics Agency Land and Maritime (132 awards, $1 million combined potential value), and the Naval Supply Systems Command (54 awards, $948 thousand combined potential value). DLA Aviation rounds out the active set with 22 awards valued at $593 thousand. Recent prime work includes a $18,186 Total Small Business purchase order from NAVSEA for a 412 filter (July 28, 2025), a $6,310.38 full-and-open purchase order for 3,000 PSI CRES fluid filters with 40-micron nominal filtration per model 4326GG-40VL (June 10, 2025), a $10,288 Total Small Business award for dual element filters supporting NAVSEA's nuclear program (May 17, 2024), and a $3,199.77 purchase order for two 300 series corrosion-resistant stainless steel filter assemblies rated at 3,000 PSI with 75-micron nominal filtration (February 13, 2026).

The vendor operates across a broad portfolio of Indefinite Delivery Contracts with DLA and other defense agencies; named vehicles include IDC SPM7M109D5D91 (11 task orders, $47 thousand combined value), IDC SPM4A710D5005 (6 task orders, $40 thousand), and IDC SPM7M110D5M86 (6 task orders, $23 thousand). Award activity has grown from five awards in 2022 to twenty in 2024, with a recent slowdown to ten awards in 2025 and two in 2026 year-to-date. The combined potential value across 486 awards (first awarded in 1998) stands at $5 million, with $5.6 million obligated across all awards—indicating mature, transactional order flow rather than growth contracts. Performance occurs across multiple locations, including Oak Lawn and Bridgeview, Illinois; Naval Submarine Base Kings Bay, Georgia; Portsmouth, Virginia; and other Navy and DoD facilities.

Norman Filter's subcontract footprint is rooted in aerospace and propulsion systems. Named primes include Boeing (multiple sub-awards for Ares I Upper Stage manufacturing, Space Launch System production, and Wideband Global Satcom Space Vehicle 12 support, awarded 2023–2025), Lockheed Martin (recurring Navy and national defense R&D filter sub-awards, 2023–2024), and Huntington Ingalls (CVN 68 Inactivation and Defueling and CVN 75 Refueling Complex Overhaul filter subcontracts, 2025). The vendor also subcontracts to NASA and Bechtel National for Space Launch System Mobile Launcher 2 pneumatics filters. Subcontract work centers on filter elements and housings for flight vehicles, propulsion systems, and reactor cooling—roles that leverage the company's AS9100 aerospace certification and precision manufacturing capability. The majority of the vendor's federal footprint remains prime purchase orders for commodity filtration components flowing through DLA and Navy supply channels, with subcontract work (18 awards, 4% of the portfolio) anchored in high-reliability aerospace and naval propulsion programs.

A Diverse Hydraulic and Pneumatic Filtration Product Line

High pressure filter assemblies - 4500 series, U-115, 30k inline in a variety of configurations and metallurgy

High pressure, high flow assemblies - 4900 series

High pressure Mini Inline 4200 Series - commonly utilized within the Aerospace industry

Cone / Witches Hat Filters

Medium pressure filters

Low Pressure filters

Custom filters to meet your needs - manifold, subsea filters, B31.3 compliant designs