Apeks O-ring chart

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steveharriss

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Apeks IDBS (in brackets for Metric)Cross SectionInner diam.SCUBA Application Seal
AP11570031/161/16High-Pressure Hose/SPG swivel
AP64030041/165/64High-Pressure Hose/SPG swivel (less common)2mm x 1.78mm
AP12990061/161/8Apeks HP seat (1st stage)3mm x 1.78mm
AP15640062.9mm1.78mmPower Inflator spindle (Polyurethane)70 Shore
AP12820074mm x 1.78mm
AP11540101/161/4Low-Pressure Hose/2nd Stage Regulator
Cylinder Valve Stem
Apeks crown (2nd stage)
6mm x 1.78mm
AP14090111/165/16Standard Low-Pressure Port/Hose (3/8 UNF)
Apeks adjusting screw (2nd stage)
Apeks conical filter (1st Stage)
Apeks FSR HP crown (1st stage)
Power Inflator quick disconnect oring
7.6mm x 1.78mm
AP14450121/163/8High-Pressure Port/Hose (7/16 UNF)
Manifold and Manifold Port Plugs
9.5mm x 1.78mm
0121/163/8Power Inflator cylinder inner oring (Buna)
AP14100131/167/16Large Low-Pressure Port/Hose (1/2 UNF)
Apeks balance plug inner (1st stage)
11mm x 1.78mm
AP11590141/161/2Standard Yoke Regulator/K-valve
Apeks ATX adjuster screw (2nd stage)
12.5mm x 1.78mm
AP12670151/169/16Apeks value spindle (2nd stage)
Cylinder Valve Bonnet Nut
14mm x 1.78mm
AP129801717.4mm 1.78mm
AP408901819mm x 1.78mm
AP14380191/1613/16Apeks Venturi (2nd stage)
Apeks turret bolt (1st stage)
20.5mm x 1.78mm
AP142002428mm x 1.78mm
AP14200241/161-1/8Apeks Turret (1st stage)
AP11661113/327/16Apeks DIN Regulator/Valve
Apeks Yoke spare (2nd stage)
Note:Yoke valves often use BS112 or BS014
11mm x 2.62mm
1123/321/2Power Inflator cylinder outer oring (Buna)
AP140511314mm x 2.62mm
AP150511415.5mm x 2.62mm
AP162811517.4mm x 2.62mm
AP145611720.5mm x 2.62mm
AP141811822mm x 2.62mm
AP127711923.5mm x 2.62mm
AP750261070 Shore
AP130015x1.5 (0151-16)1.5mm15mmApeks HP balance plug outer (1st stage)BS 15.1mm x 1.6mm
AP57112.5x1 (607)1mm2.5mmApeks ATX adjuster screw nib (2nd stage)BS 2.8mm x 1.02mm
2041/83/8Power Inflator oral inflate oring (Buna)
AP1278213/214?23.5mm x 3.53mm
2141/81Cylinder with Large Neck/Valve
(3/4 NPS - All Aluminum, most Steel cylinders)
AP20412x1 (606)1mm2mmApeks shuttle valve (2nd stage)BS 2mm x 1.02mm
 

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https://www.shearwater.com/products/perdix-ai/

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