• ARMSTRONG PUMP REBUILD KIT 4280 & 4380 “M” (1.625”)
• FOR MOTOR FRAMES 254-256 & 284-326JM
• MATERIALS:  EPR ELASTOMERS/CARBON FACE/CERAMIC STATIONARY SEAT
• KIT INCLUDES: MECHANICAL SEAL, SHAFT SLEEVE, SPACER SLEEVE AND CASE GASKETS
• OEM # FOR REFERENCE PURPOSES ONLY:  ARMSTRONG  SEAL 975000-984, SLEEVE 425869-003, SPACER 425868-004, SLINGER 419315-000, GASKETS 426401-002, 426401-003, 426401-004, 426401-005, 426401-006