If you’re in search for quality aviation parts such as Aperture Precision, Aerospace Unlimited is your-one-stop shop. 428157-001 are just a few of the Aperture Precision parts that we have inventoried. In fact, we have over 6 billion new, old and obsolete parts in our procurement list. Our customers know that they can trust us because of our policy to source exclusively from certified manufacturers like Ingleside Machine Co Inc, Harris Corporation. We pride ourselves in being the only independent parts distributor with a No China Sourcing pledge. If you submit an Instant RFQ for your desired Aperture Precision parts, we can provide you with a quote in as little as 15 minutes.