5330-01-037-1178 (29760)
NSN 5330-01-037-1178 (NIIN 01-037-1178) is a metal seal ring in Federal Supply Class 5330, Packing And Gasket Materials — a circular shaped item designed to be installed in a specially prepared groove or counterbore to provide a low pressure seal. Manufacturer part number 29760; also referenced as 500130 (Robert E. Krueger Manufacturing And); 29760 PIECE 4, D19150 (Crane Co).
Key specs: 90 minimum brinell standard and 100 maximum brinell standard metallic hardness; full characteristics table below. NIIN assigned March 1977; DEMIL A (none required); unit of issue EA (each), $242.04 gov standard price; export Schedule B 3926.90.4500.