Armstrong pump rebuild kits contain Viton Elastomers / Carbon Face Silcon Carbide Stationary Seats with Teflon Gaskets.All of our products are made to meet or exceed OEM specifications.
**All OEM names and part numbers are used for reference purposes only. All of our products are aftermarket seal kits and parts**
Model 4300, 4302 & 4312
(outside balanced style seal for stuffing box design pumps)
Frame sizes 143 TC – 256 TC (1.125” seal)
Kit includes Balanced 8B2 mechanical seal (975002-304), seal gaskets and case gaskets
(426401-002, 426401-003, 426401-004, and 426401-006).
Model 4300 & 4302
(inside single spring seal rebuild kits include an original US Seal type E 8B2 Balanced Mechanical Seal & case gaskets.