MS35769-21 Copper Crush Washer – AN900-16 Equivalent Aircraft Sealing Washer
The MS35769-21 is a high-quality copper sealing washer designed for use in certified aircraft systems where leak-proof connections are critical. Equivalent to AN900-16, this crush washer is widely used across fuel, oil, and hydraulic applications.
Manufactured from soft copper, the washer deforms under torque to fill surface imperfections, ensuring a secure and reliable seal. It is commonly used on drain plugs, fluid line fittings, and engine components in general aviation aircraft.
Key Features
- Equivalent to AN900-16
- Manufactured to MS35769 specification
- Soft copper construction for optimal sealing
- Designed for single-use (crush-type sealing)
- Resistant to fuel, oil, and hydraulic fluids
- Suitable for certified aircraft applications
Dimensions
- Inner Diameter (ID): 0.625″ (5/8″)
- Outer Diameter (OD): 0.875″
- Thickness: 0.063″
Typical Applications
- Oil system drain plugs
- Fuel system fittings
- Hydraulic connections
- Engine components
- General aircraft maintenance and servicing
Commonly Used With
- AN fittings and connectors
- Oil drain plugs
- Fuel line connections
- Hydraulic system components
Traceability & Certification
This product is supplied with full aviation traceability in accordance with industry standards.
✔ Manufactured by approved aerospace manufacturer (OGS Industries, Ohio, USA)
✔ Full lot and batch traceability available
✔ Form 8130-3 included
✔ Documentation included with each shipment
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