Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number MPB-21 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 MPB-21 It is listed as Penholder. component manufactured by Staedtler Inc, specifically under CAGE Code 87506. It is also accompanied by the NSN 7510012977000 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC .