The small hardware items you may need to finish a big job are usually the hardest parts to find. Anyone who has done much mechanical work has either misplaced a small part and/or encountered hardware that is worn, corroded, or broken. Our NV271F Small Parts inventory includes those odds and ends that do not fit any of our other product categories.
The Poppet parts put tension on the Sector Shaft Cam to keep the Transfer Case from "jumping" out of gear. The detents you feel when shifting your transfer case are from the Poppet Plunger moving into and out of the "teeth" on the Sector Shaft Cam.