JLG M400 Parts Manual - Manual (Page 180)

SECTION 4 - BOOM
180 E400An/E400AJP/E400AJPn/M400AJP/M400AJPn 3121646
ITEM PART NUMBER QTY DESCRIPTION REV
45 3311505 4 Nut, Lock 5/16-18 (SN 0300193896 to Present)
46 4751500 4 Washer, 5/16 (SN 0300193896 to Present)