Future buyers of London Fog raincoats and Florsheim shoes may find lower prices as a result of a settlement obtained by the Federal Trade Commission last week.

The FTC announced on Friday that Interco Inc., the company that makes those products and many other lines of apparel and footwear, signed a consent order agreeing, among other things, not to suggest retail prices for its products for three years.

The order would, when final, settle a proposed complaint that Interco has illegally been fixing the resale prices of its products; requiring its dealers to adhere to them through agreements and by threatening to cut off their supplies; and by providing special benefits to dealers who maintain the prices.

The consent order would prohibit Interco from tyring to fix or control the resale prices of its products; pre-ticketting products with resale prices; communicating with any dealer or prospective dealers because of their reing or taking any other action spective dealer concerning a deviation from any resale price; terminat-against dealers because of their resale prices; and withholding advertising allowances or other benefits from dealers because of their resale prices.

Interco agreed not to discriminate among competing footwear dealers and not to exclude footwear competitors from the market.

One of the FTC's charges was that Interco induced some of its footwear dealers not to buy competing firm's products.

Interco, which had net sales of about $1.4 billion in 1976, also produces Thayer McNeil shoes, and Devon, College-Town and Queen Casuals apparel.

"We anticipate sizeable consumer benefits," Paul Peterson, director of the FTC's Cleveland office, said Friday. He said the savings that could result from the order could run "tens of millions of dollars."

He said the case could be similar to one brought a few years ago against Levi Strauss which resulted in a substantial drop in the price of its most popular products.

A consent agreement is for settlement purposes only and does not constitute an admission by the signers that they have violated the law.

The FTC is conducting a broad investigation of the clothing industry in an attempt to crack down on retail price-fixing by manufacturers.