Does this go over the flared portion of the line that goes into the pump or over the threads against the nut that tightens into the pump?

Not sure if I fully understand your question, but this washer goes on all the way past the threads and against the nut (which could be going into your pump, hydroboost, gearbox etc). For my line, it was a pain as the washer was a little too small for my application (05 f350 with the 6.0).

What size are these. What’s the Inside diameter?

One is .455" ID The other is .525" ID

How many come in a set? Is it just two?

Yes, there are two nylon washers in the package, though you only need one if you are replacing the pump.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Dorman 82540 Power Steering Pump Washer Assortment

Product ID: 734202496

€ 100.64

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Sold byAmazon FinlandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

Dorman Power Steering Pump Washer is engineered for affordability and convenience. Replace only the seal, instead of the entire power steering pump cap.

Specifications

Brand	Dorman
Product Dimensions	13.97 x 4.45 x 1.27 cm; 4.54 g
Item model number	82540
OEM Part Number	388897S; 388898S
Item Dimensions L x W x H	14 x 4.4 x 1.3 cm
Item Weight	4.54 g

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