LOCTITE® GRADE AA
Features and Benefits
Original high strength and low viscosity, wicking-grade threadlocker formulation from the 1950s. Designed for locking and sealing fine threaded nuts, bolts and studs in legacy applications where compliance to Mil-S-22473E Grade AA is required.
When you need to lock and seal fine threaded nuts, bolts and studs in legacy applications where certification to Mil-S-22473E Grade AA is required, choose LOCTITE® Grade AA (89). This green, high viscosity, high-strength anaerobic curing adhesive cures in the absence of air and presence of metal. It also fluoresces under UV light – great for quality control. The low viscosity of Grade AA also makes it ideal for sealing porosities in welds and metal castings. It is able to penetrate porosities and cracks by capillary action, filling voids as large as 0.127 mm (0.005").
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Documents and Downloads
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Technical Information
| Applications | Threadlocking |
| Color | Green |
| Cure type | Anaerobic cure |
| Key characteristics | Mix: no mix required, Strength: high strength, Viscosity: low viscosity |
| Physical form | Liquid |
LOCTITE® GRADE AA
Original high strength and low viscosity, wicking-grade threadlocker formulation from the 1950s. Designed for locking and sealing fine threaded nuts, bolts and studs in legacy applications where compliance to Mil-S-22473E Grade AA is required.