VALVE CAP (P/N 637) - New Surplus

Part 637 is a brass Schrader valve cap that seals and protects aircraft tire service valves during storage and operation. The cap features an integral sealing washer that maintains pressure retention under normal service conditions. Installation is wrench-tight per aircraft maintenance manual specifications.

Used on aircraft main and nose landing gear tires for inflation and deflation servicing. Equivalent to MS-20813-1 specifications from manufacturers like Dill. Verify compatibility with your aircraft's Illustrated Parts Catalog before installation.

What is the VALVE CAP (P/N 637)?

Part 637 is a brass Schrader valve cap that seals and protects aircraft tire service valves during storage and operation. The cap features an integral sealing washer that maintains pressure retention under normal service conditions.

What hydraulic fluid type is the 637 compatible with?

Hydraulic component compatibility depends on the aircraft system design. Common aviation hydraulic fluids include MIL-PRF-5606 (mineral-based), MIL-PRF-83282 (synthetic), and Skydrol (phosphate ester). Verify the VALVE CAP against your aircraft maintenance manual for fluid compatibility.

Does the 637 come pressure-tested and certified?

Overhauled and repaired hydraulic components are pressure-tested per manufacturer specifications and include 8130-3 documentation. The VALVE CAP is available in: New Surplus. Contact us for test documentation on your selected condition.

What is the turnaround time for hydraulic component orders?

In-stock hydraulic components ship same business day before 3 PM EST. We provide 24/7 AOG support at (904) 998-9101 for urgent hydraulic system needs. RFQ submissions are typically quoted within 24 hours.