SECTION II TM 10-3930-659-24P (1) (2) (3) (4) (5) (6) ITEM SMR PART NO CODE CAGEC NUMBER DESCRIPTION AND USABLE ON CODES (UOC) QTY RING, BACK-UP (   1) 191-16 RING,  BACK-UP (   1) 191-13 RING, VALVE PISTON (   1) 191-17 SEAL (   1) 191-5 SEAL (   1) 191-7 SEAL (   1) 191-9 SEAL (   1) 191-18 SEAL (   1) 191-14 SEAL,PLAIN ENCASED (   2) 191-15 END OF FIGURE KITS-4