The Parker Stratoflex 300-6S is a straight reusable (field attachable) 37° flared hose fitting engineered for use with Stratoflex 111 series hose assemblies. Designed to provide a secure, leak-free mechanical connection, this fitting enables the assembly or replacement of hose ends without the need for crimping equipment, making it particularly valuable for aircraft maintenance and field service operations. The 300-6S configuration is intended for 3/8-inch (-6) hose size and features a 9/16-18 thread connection. :contentReference[oaicite:0]{index=0}

Manufactured to Parker Stratoflex aerospace standards, this fitting is designed for use in fluid transfer systems where reliability and pressure integrity are essential. The precision-machined 37° flare sealing surface provides dependable metal-to-metal sealing when installed with compatible mating components, helping maintain system performance in hydraulic, fuel, lubrication, and pneumatic applications commonly found on aircraft. :contentReference[oaicite:1]{index=1}

The field-attachable design allows qualified maintenance personnel to fabricate or repair hose assemblies efficiently while minimizing aircraft downtime. The "S" designation identifies the fitting as being manufactured from carbon steel, providing excellent mechanical strength and durability for demanding operating environments. Proper installation using compatible Stratoflex hose and approved assembly procedures is essential to ensure long-term performance and system safety. :contentReference[oaicite:2]{index=2}

Key Features

- Part Number: 300-6S
- Manufacturer: Parker Stratoflex
- Component: Straight Field Attachable 37° Flared Hose Fitting
- Hose Size: -6 (3/8 in.)
- Thread Size: 9/16-18
- Connection Type: 37° Flare
- Material: Carbon Steel
- Compatible Hose: Stratoflex 111 Series Hose
- Application: Aircraft hydraulic, fuel, oil, pneumatic, and fluid transfer systems
- Feature: Reusable field attachable design for OEM maintenance and hose assembly