Captain O-Rings 255 Piece BOSS Hydraulic BN70 O-Ring Kit includes 12 sizes and 255 total o-rings. The kit includes o-ring sizes 904, 905, 906, 907, 908, 909, 910, 911, 912, 913, 914, 916 which are used to seal straight thread tube fittings (BOSS Type) found in hydraulic equipment. This kit contains o-rings made of Buna Nitrile (70 durometer) material, also known as BN70 or NBR70 . BN70 is the most common and most practical o-ring material used in BOSS seal applications due to its resistance to many hydraulic fluids and its flexibility/sealability in low temperatures. The included size chart on the front of the kit makes sizing up o-rings quick and effortless. O-Rings are conveniently sorted by size in a shatterproof Flambeau divider box.
Includes The Following O-Ring Sizes and Quantities:
What to expect:
This item includes 255 O-Rings in a Flambeau plastic divider case with "Captain O-Ring" branded packaging.
Assembled in the USA!
Captain O-Ring ORS/ORFS (Flat Face) O-Ring Seal Kit (Buna 90, 180pc Kit) | Captain O-Ring BOSS Hydraulic SAE 900 O-Ring Seal Kit (Buna 70, 255pc Kit) | Captain O-Ring Flange Seal Hydraulic O-Ring Seal Kit (Buna 90, 55pc Kit) | |
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Use: | O-Rings used in sealing ORS/ORFS Hydraulic Fittings (also called Flat Face fittings) found in hydraulic equipment. | O-Rings used in sealing straight thread tube fittings (BOSS / ORB Type) found in hydraulic equipment. | O-rings used in sealing Hydraulic Flange Fittings found in hydraulic equipment. |
Kit Contents: | Includes #4 (1/4" Flat Face), #6 (3/8" Flat Face), #8 (1/2" Flat Face), #10 (5/8" Flat Face), #12 (3/4" Flat Face), #16 (1" Flat Face), #20 (1-1/4" Flat Face), and #24 (1-1/2" Flat Face) o-rings. | Includes all sizes between -904 (-4 Fitting, 1/4" Tube OD) to -916 (-16 Fitting, 1" Tube OD). | Includes #8 Flange Seal (1/2" Hose), #10 Flange Seal (5/8" Hose), #12 Flange Seal (3/4" Hose), #16 Flange Seal (1" Hose), #20 Flange Seal (1-1/4" Hose), #24 Flange Seal (1-1/2" Hose), and #32 Flange Seal (2" Hose). |