Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 31331 with rapid responses always offered by our staff. To ensure that you locate and procure exactly what you need with ease, we list parts with as much information as we can. For example, part number 31331 It is listed as Muffler Exhaust. component manufactured by Stewart And Stevenson Services Inc, specifically under CAGE Code 81381. It is also accompanied by the NSN 2990007311291 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 2990 Miscellaneous Engine Accessories Nonaircraft.