5310-01-292-5004 (A05727)
NSN 5310-01-292-5004 (NIIN 01-292-5004) is a clinch plain nut in Federal Supply Class 5310, Nuts And Washers — a nut having a sleeve portion on its under side, which can be crimped or clinched to hold the item in place when inserted in a hole. Manufacturer part number A05727 (Mbda Uk Ltd, CAGE K0967); also referenced as M45938/3-2C, MIL-N-45938 (Military Specifications).
Key specs: 90 rockwell b maximum hardness; full characteristics table below. NIIN assigned January 1989; DEMIL A (none required).