4310-01-312-6835 (6448)
NSN 4310-01-312-6835 (NIIN 01-312-6835) is a piston ring expander spring in Federal Supply Class 4310, Compressors And Vacuum Pumps — a spring steel ringlike item designed to be placed between a piston ring and the piston to maintain the correct piston ring pressure against the cylinder wall. Manufacturer part number 6448 (Quincy Compressor Division Of Coltec, CAGE 49576).
NIIN assigned December 1989; DEMIL A (none required); unit of issue EA (each), $19.98 gov standard price; export Schedule B 8409.10.0080.