What Hydro Fitting Manufacturing does

Hydro Fitting Manufacturing Corporation is a privately held, AS9100- and Nadcap-certified precision manufacturer of custom high-pressure valves, charging kits, hose assemblies, fittings, and accumulator manifolds, headquartered in Covina, California. Founded approximately in 1962-1974 (the company self-reports "over 50 years of experience") and employing 101-250 people, the firm operates from a single manufacturing site equipped with Haas vertical machining centers and horizontal turning centers capable of producing parts rated from sub-atmospheric pressures up to 23,000 PSI. Its product lines include MIL-spec and proprietary HF-series charging valves, valve caps, tank valves, charging chucks, manifolds, engine accessory covers, and specialty fittings, with ancillary LOX and F.O.D. clean packaging services. The company emphasizes hard-to-find, custom-configured components and holds human-space-flight-qualified status on the ULA Vulcan Centaur rocket program.

The company sells exclusively on a B2B, quote-based direct sales model with Net 30 payment terms, shipping Ex-Works from Covina for North American customers and FCA for international destinations. Pricing is fully custom, with overrun/underrun tolerance of 5% per item, and the firm retains a purchase-money security interest in all delivered goods until payment. Its customer base is concentrated in aerospace and defense — including "most aerospace prime contractors," the U.S. National Security Space Launch program serving the Space Force and intelligence community, and adjacent commercial/industrial and mining/heavy equipment markets. The firm has no disclosed external funding, no parent company, no M&A history, and operates entirely on internal cash flow generated over its 50-plus-year history. Distribution is direct via website-driven Request Quote workflow and LinkedIn presence; the company also operates a web-based computerized order tracking system that exposes production status to customers in real time.

Name

Hydro Fitting Manufacturing

Legal name

Hydro Fitting Manufacturing Corporation

Website

https://hydrofitting.com

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

101–250 employees

Short description

Hydro Fitting Manufacturing Corporation is a privately held, AS9100/Nadcap-certified precision manufacturer of custom high-pressure valves, charging kits, fittings, and accumulator manifolds serving aerospace primes, U.S. defense agencies, and industrial customers from its Covina, California facility.

Ownership category

akta.pro rank

Product category

Aerospace & Defense Fluid Control Components

NAICS

Fluid Power Valve and Hose Fitting Manufacturing (332912), Aerospace Product and Parts Manufacturing (33641), Fabricated Pipe and Pipe Fitting Manufacturing (332996)

SIC

Aircraft Parts & Auxiliary Equipment, Nec (3728), Screw Machine Products (3451)

akta.pro primary industry

Hoses, Tubing & Fittings (Hydraulic/Pneumatic Lines & Connectors) (IMAHAGAH)

akta.pro secondary industry

Aerospace Fuel System Components (Tanks, Lines, Valves) (IMABANAJ)

Keywords

• High-pressure valves
• Charging kits
• Aerospace fittings
• Accumulator manifolds
• Precision CNC machining

Headquarters

HQ city

Covina

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. High-Pressure Valves and Fittings Sales: Manufacture and sale of custom and standard high-pressure valves, tank valves, charging valves, fittings, and specialty components. Products sold as finished goods to aerospace, defense, and industrial customers.
2. Charging Kits and Assemblies: Complete charging kits, hose assemblies, and manifolds sold as assembled units or components to commercial and defense customers.
3. Custom Manufacturing Services: Custom manufacturing to buyer specifications including dies, tools, patterns, and special configurations. Pricing adjusted for custom work and material sourcing.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Hydro Fitting Manufacturing Corporation designs and manufactures custom and standard high-pressure valves, charging kits, charging valves, tank valves, valve caps, accumulator manifolds, hose assemblies, and specialty fittings for aerospace, defense, and industrial applications. The company specializes in hard-to-find components rated up to 23,000 PSI, with products qualified for human space flight and certified to AS9100, Nadcap AS7112, and ISO 9001:2015 standards. Manufacturing is performed at the company's Covina, California facility using precision CNC machining with proprietary processes and a computerized order tracking system.

Product overview

Hydro Fitting Manufacturing is a precision manufacturer specializing in hard-to-find high-pressure valves, charging kits, fittings, and fluid control components with over 50 years of experience. The company operates as a single unified product portfolio focused on the aerospace, defense, commercial automotive, mining, and heavy equipment industries. The core product lines include Charging Kits (HF439, HF443, HF457, HF469, HF479 series), Charging Valves (HF2001, HF2002, HF2100IF-L/W, HF4361S, M6164-2, HF6398-10), Valve Caps (HF20813-1NL, HF1007, MS20813-1, HF1023D, HF2023), Charging Chucks (HF2011, HF5007, HF2014 series), Tank Valves (MS27436 series, HF460, HF9166-1c), Accumulator Manifolds (HF2019, HF443, NSA855110-24C), Engine Accessory Covers (AN/AS series), Hose Assemblies & Hose Ends (AN6270, MS27404), Specialty Fittings (A934.82264.000, MS24393/AS5406), and Specialty Valves (various military/defense part numbers). The products are complemented by Quality Packaging services including LOX and F.O.D. clean processing. The company manufactures components qualified for human space flight, contributing to the ULA Vulcan Centaur rocket program.

Differentiator

Problem solved

Functional benefit

Products and services

• Charging Kits High-pressure charging kits for pneumatic, hydraulic, or steam applications, rated from 0-400 PSI to 2000-5000 PSI. Includes MIL DTL 8348 compliant models. Sold to aerospace, defense, and industrial customers.
• Charging Valves High-pressure charging valves with thread sizes ranging from 1/2-20 UNF to 5/8-18 UNF, designed for accumulator and tank pressure control in aerospace and defense applications. Human-space-flight qualified for use on ULA Vulcan Centaur.
• Valve Caps High-pressure valve caps available in big bore sizes with pressure ranges from 0-23,000 PSI. Available in brass, stainless steel, and aluminum alloys. Capable of withstanding extreme environments including radiation outside Earth's atmosphere.
• Charging Chucks Precision charging chucks with various thread configurations for connection to valves and gauges in pneumatic and hydraulic systems.
• Tank Valves High-pressure tank valves for aerospace and defense applications, including MS27436 series and custom HF series valves designed for accumulator and tank pressure control.
• Accumulator Manifolds Accumulator manifolds for fluid distribution systems, including HF2019, HF443, NSA855110-24C, and other military/aerospace specified models for aerospace and defense applications.
• Engine Accessory Covers Aerospace-grade engine accessory covers including AN10004, AN100044, AS3221, AS3222, and AS3223 series for aerospace applications.
• Hose Assemblies & Hose Ends Low and medium pressure hose assemblies available in any length and size, including AN6270 and MS27404 series with replaceable ends in various alloys for aerospace and industrial applications.
• Specialty Fittings Hard-to-find specialty fittings including A934.82264.000, MS24393/AS5406, and 65251-08063-101, available in all sizes and alloys for aerospace applications.
• Specialty Valves Custom specialty valves for aerospace and defense, including part numbers 128HM10505-1, 4024160, 212-062-069-3, 58A164D859, 3001T06-P01, NSA835059, and 6785535.
• Quality Packaging Standard, commercial, government spec packaging, custom, and LOX (liquid oxygen) packaging services. Includes foreign object detection (F.O.D.) process to ensure contaminate-free parts for aerospace and defense customers.
• Custom Manufacturing Services Custom manufacturing to buyer specifications including custom dies, tools, patterns, and special configurations of valves, fittings, and assemblies. Pricing is adjusted for custom work and material sourcing. Sold to aerospace, defense, and industrial buyers.

Quantifiable outcome

• Fastest turnaround times in the industry
• +1 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• United Launch Alliance (ULA)coreStrategic or Co-development PartnerHydro Fitting Manufacturing supplies highly engineered charging valves for the Vulcan Centaur rocket hydraulic systems. These valves control accumulator pressure and are qualified for human space flight, protecting the structure, astronauts, and payloads. The Vulcan Centaur is ULA's two-stage-to-orbit heavy-lift launch vehicle developed since 2014 for the U.S. government's National Security Space Launch program.

Scale indicators4 records

Recent moves5 records

Expansion highlights4 records

Market position

Strengths4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/hydro-fitting

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Hydro Fitting Manufacturing