ARMSTRONG MECHANICAL SEALS

Armstrong pump seal replacements and Armstrong pump seal kits. Repair your Armstrong pump with a quality aftermarket Armstrong pump mechanical seal replacement from Infinity Pump. Armstrong mechanical seals are built to manufacturer’s specifications. Purchase seals for all common Armstrong pumps, including:

  • Armstrong 4380 seal kit
  • Armstrong 4030 seal kit
  • Armstrong 4300 seal kit

** All OEM Names and part numbers are used for reference purposes only. **

Armstrong 4380 Seal Kit

Our Armstrong 4380 Pump Seal Replacements are constructed of 316 stainless steel and meet manufacturer’s specifications. Common part numbers are:

  • 975000-984
  • 975000-984SC

Armstrong 4030 seal kit (also fits Armstrong 4280 Pumps)

Our Armstrong 4030 pump seal replacements meet all manufacturer’s specification and are constructed of quality 316SS. Common shaft sizes are 0.5″, 1.25″, and 1.625″. Typical part numbers are:

  • 816706-021
  • 816706-021ESC
  • 975000-991
  • 825458-001
  • 825458-003
  • 975000-993
  • 975000-982
  • 975000-982SC
  • 975000-984
  • 975000-984SC
  • 975000-985
  • 975002-985SC

Armstrong 4300 Mechanical Seals

Our Armstrong 4300 mechanical seals are built to manufacturer’s specifications. They are made from 316 SS and Premium carbon or Silicon Carbide faces. Typical shaft sizes are 1.125″, 1.625″, 2.125″, and 2.625″. Common part numbers for Armstrong 4300 pump seal replacements:

  • 975002-304
  • 975002-304SC
  • 975002-334
  • 975002-334SC
  • 975002-374
  • 975002-374SC
  • 975002-394
  • 975002-394SC

Features and Benefits of our Armstrong Mechanical Seals

  • Carbon / Silicon Carbide / EPDM standard materials of construction
  • SiC / SiC faces available
  • All 316 SS construction
  • O-Ring Options: EPDM standard. FKM and Aflas® available upon request
  • Aflas® O-Rings support temperatures up to 450°F
  • Multiple spring design creates consistent face pressure
  • Easy installation with unitized rotating assembly

Armstrong Carbon Bushings

Carbon bushings available upon request

** All OEM Names and part numbers are used for reference purposes only. **

armstrong pump seal replacement
armstrong pump seal kit