Part number from Fox: "803-00-014-B Kit: Rebuild, (Floating Pist. Type)" contents: (Sorry for the inconsistant units) A: 1-3/4" O.D. / 3.5mm thick O-Ring (three of them) B: 39.83mm O.D. / 2.64mm thick O-Ring C: 1.57" O.D. / 4.31mm thick O-Ring D: 24mm O.D. / 1.75mm thick O-Ring E: 21mm O.D. / 2.62mm thick O-Ring F: 8.1mm O.D. / 1.85mm thick O-Ring G: 9.65mm O.D. / 1.85mm thick O-Ring H: .1875" diameter ball bearing (two of them) I: 12.25mm O.D. (free) / 0.69mm thick J: 0.252" free length / 4.5 coils / 0.57mm wire / 4.6mm O.D spring (two of them) K: 5/8" I.D. / 0.926" O.D. / 1/4" thick oil seal L: 5/8" I.D. / 0.89" O.D. / 0.195" thick oil seal M: 5.549" long / 0.305" wide / 0.051" thick piston seal (two of them) N: high pressure schrader valve cap