SECTION II TM9-2320-273-24P (1) (2) (3) (4) (5) (6) ITEM SMR PART NO CODE FSCM NUMBER DESCRIPTION AND USABLE ON CODE (UOC) QTY GROUP:1208 AIR BRAKE SYSTEM FIGURE 121.  DOUBLE CHECK VALVE AND AIR BRAKE LINES AND FITTINGS (MODEL M915). 1 PAOZZ 30327 269N3-8X3-8NPT ELBOW,MALE 1 UOC:U21 2 PAOZZ 06853 280809 VALVE,BRAKE,PROPORT 1 UOC:U21 3 PAOZZ 10988 222-2645 ELBOW, MALE 2 UOC:U21 4 PAOZZ 24617 444620 PLUG,PIPE 2 UOC:U21 5 PAOZZ 79470 120-10113 NUT,PLAIN,HEXAGON 1 UOC:U21 6 PAOZZ 79470 120-20278 WASHER,LOCK 1 UOC:U21 7 PAOZZ 79470 103-23519 UNION,PIPE 1 UOC:U21 8 MOOZZ 34623 M/357-20070 TUBE,NONMETALLIC MAKE FROM P/N 1 246115 UOC:U21 9 PAOZZ 24617 444689 PLUG,PIPE 1 UOC:U21 10 PAOZZ 24617 444626 PLUG,PIPE 4 UOC:U21 11 MOOZZ 34623 M/357-20069 TUBE,NONMETALLIC MAKE FROM P/N 1 246115 UOC:U21 12 PAOZZ 24617 444699 PLUG,PIPE 1 UOC:U21 13 PAOZZ 79470 1480X8X8 ELBOW 2 UOC:U21 14 PAOZZ 96906 MS14315-4 BUSHING,PIPE 1 UOC:U21 15 PAOZZ 79470 1480X6X6 ELBOW 2 UOC:U21 16 PAOZZ 93061 68NTA-6-4 ADAPTER,STRAIGHT,PI MALE 1 UOC:U21 17 PAOZZ 79470 1482X6X4X4 TEE 1 UOC:U21 18 PAOZZ 79470 3206X4 REDUCER,PIPE 1 UOC:U21 19 PAOZZ 06853 228165 SWITCH,ELECTRICAL 1 UOC:U21 20 PAOZZ 93061 68NTA-6-6 ADAPTER,STRAIGHT,PI MALE 1 UOC:U21,U22 END OF FIGURE 121-1