Boss Seals work as a direct replacement/upgrade for elastomeric O-rings on MS-33514 flared and MS-33656 flare-less fitting ends, installed into MS-33649 fluid bosses. Boss seals are designed to withstand temperatures up to 1200°F (650°C) and pressures exceeding 5000 psi (35 MPa) (The seal is capable of higher pressures. Boss or fitting may be limiting item. Consult your local representative for assistance if pressures exceed 5000 psi (35 MPa).

Standard boss seals are made from Alloy X-750, work hardened, and silver plated to a thickness of 0.0004 to 0.001 in. (0.01 to 0.03 mm).

Markets

• Aerospace

• Oil and Gas

• Power Generation

• Military

Features/Benefits

• No rework of boss or fitting is necessary.

• Utilizes proven silver plated alloy X-750 C-ring technology.

• Washer engages with fitting threads for centering the seal in the boss.

• Designed for installation in either direction.

• Internally pressure-energized to maintain sealing stress so there is no need to retorque.

• Cannot extrude or fail due to ageing, pressure impulses, proof testing, or extreme temperatures.

• Fully compatible with all hydraulic fluids and fuels (one seal type works for all fluids).

• Easy selection for all standard dash sizes.

HOW TO ORDER:

Use the part configuration tool above to generate the custom part for your application. Contact Parker for requirements outside standard materials and size ranges shown in the literature documents in the Related Support Documents tab. Click on “Where to Buy” to find a Distributor in your area, or click the Contact Us link for assistance.

Boss Seals for MS-33649 Fitting Ends