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Boss O-Ring Kit

There is 20 standard sizes for O-rings used to seal straight-thread tube fittings on a boss. A boss Tube fitting with boss seal is cylindrical projection on a casting or forging. The end of that projection is machined to provide a flat, smooth surface for sealing. Straight threads used with an O-ring provide a better seal than tapered threads used alone. Although made in a variety of o-ring compounds the most common Boss O-rings are Buna-N in 90 Durometer.




Image Model+ Item Name Qty. Price Quantity Discounts
OSK™ SAE Boss O-Ring Seal Kit - SAE 900 - 155 Piece Buna-N 90 K155X8N90-900

OSK™ SAE Boss O-Ring Seal Kit - SAE 900 - 155 Piece Buna-N 90

OSK™ SAE Boss O-Ring Seal Kit This Kit contains 155 pieces and 8 of the most popular 900 series O-Rings. These Boss Seal O-Rings are used in...
42
$10.00

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Quantity Discounts
1-9$10.00
10-24$9.00
25+$7.50
OSK™ SAE Boss O-Ring Kit 155 Piece Fluorocarbon FKM 90 Duro K155X8V90-900

OSK™ SAE Boss O-Ring Kit 155 Piece Fluorocarbon FKM 90 Duro

OSK™ SAE Boss O-Rings Seal Kit This Kit contains 155 pieces and 8 of the most popular 900 series O-Rings. These Boss Seal O-Rings are used in...
6
$29.50

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Quantity Discounts
1-9$29.50
10-24$26.55
25+$22.125
Industrial Boss Seal Kit - 212 Piece Fluorocarbon FKM 90 Duro K212X20F90

Industrial Boss Seal Kit - 212 Piece Fluorocarbon FKM 90 Duro

Industrial Boss Seal Kit - 212 Piece FKM 90 Use of fluorocarbon rubber is preferred over nitrile when high operating temperatures and/or harsh...
0
$80.00

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Quantity Discounts
1-9$80.00
10-24$72.00
25+$60.00
OSK™ Industrial Boss Seal Kit - 212 Piece Fluorocarbon FKM 90 Duro K212X20F90-ORK

OSK™ Industrial Boss Seal Kit - 212 Piece Fluorocarbon FKM 90 Duro

Industrial Boss Seal Kit - 212 Piece FKM 90 Use of fluorocarbon rubber is preferred over nitrile when high operating temperatures and/or harsh...
3
$80.00

Add:

Quantity Discounts
1-9$80.00
10-24$72.00
25+$60.00
Industrial Boss Seal Kit - 212 Piece Buna-N 90 K212X20N90

Industrial Boss Seal Kit - 212 Piece Buna-N 90

Industrial Boss Seal Kit - 212 Piece Buna-N 90 90 durometer nitrile is the most commonly used material in boss seal applications, due to its...
6
$31.95

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Quantity Discounts
1-9$31.95
10-24$28.755
25+$23.963
Industrial Boss Seal Kit - 212 Piece Buna-N 90 K212X20N90-ORK

Industrial Boss Seal Kit - 212 Piece Buna-N 90

Industrial Boss Seal Kit - 212 Piece Buna-N 90 90 durometer nitrile is the most commonly used material in boss seal applications, due to its...
16
$31.95

Add:

Quantity Discounts
1-9$31.95
10-24$28.755
25+$23.963
OSK™ SAE Boss O-Ring Seal Kit - 250 Piece EPDM 70 K250X12E70-900

OSK™ SAE Boss O-Ring Seal Kit - 250 Piece EPDM 70

OSK™ SAE Boss O-Ring Seal Kit The 900 series of dash numbers identifies the 20 sizes of boss seals. Except for size -901, the digits after the...
4
$25.25

Add:

Quantity Discounts
1-9$25.25
10-24$22.725
25+$18.938
OSK™ SAE Boss O-Ring Seal Kit - 250 Piece Buna-N 70 K250X12N70-900

OSK™ SAE Boss O-Ring Seal Kit - 250 Piece Buna-N 70

OSK™ SAE Boss O-Ring Seal Kit The 900 series of dash numbers identifies the 20 sizes of boss seals. Except for size -901, the digits after the...
10
$19.50

Add:

Quantity Discounts
1-9$19.50
10-24$17.55
25+$14.625
OSK™ SAE 900 Boss O-Ring Seal Kit - 250 Piece Buna-N 90 K250X12N90-900

OSK™ SAE 900 Boss O-Ring Seal Kit - 250 Piece Buna-N 90

OSK™ Boss O-Rings Seal Kit in Buna-N 90 This Kit contains 250 pieces and 12 of the most popular 900 series O-Rings. These Boss Seal O-Rings are...
29
$17.00

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Quantity Discounts
1-9$17.00
10-24$15.30
25+$12.75
OSK™ SAE Boss O-Ring Seal Kit - 250 Piece Silicone S70 K250X12S70-900

OSK™ SAE Boss O-Ring Seal Kit - 250 Piece Silicone S70

OSK™ SAE Boss O-Ring Seal Kit The 900 series of dash numbers identifies the 20 sizes of boss seals. Except for size -901, the digits after the...
5
$25.25

Add:

Quantity Discounts
1-9$25.25
10-24$22.725
25+$18.938
OSK™ SAE Boss O-Ring Seal Kit - 250 Piece Urethane 90 K250X12U90-900

OSK™ SAE Boss O-Ring Seal Kit - 250 Piece Urethane 90

OSK™ SAE Boss O-Ring Seal Kit The 900 series of dash numbers identifies the 20 sizes of boss seals. Except for size -901, the digits after the...
1
$70.00

Add:

Quantity Discounts
1-9$70.00
10-24$63.00
25+$52.50
OSK™ SAE Boss O-Ring Seal Kit - 250 Piece Fluorocarbon FKM 75 K250X12V75-900

OSK™ SAE Boss O-Ring Seal Kit - 250 Piece Fluorocarbon FKM 75

OSK™ SAE Boss O-Ring Seal Kit The 900 series of dash numbers identifies the 20 sizes of boss seals. Except for size -901, the digits after the...
0
$50.00

Add:

Quantity Discounts
1-9$50.00
10-24$45.00
25+$37.50
OSK™ SAE Boss O-Ring Seal Kit - 250 Piece Fluorocarbon FKM 90 Duro K250X12V90-900

OSK™ SAE Boss O-Ring Seal Kit - 250 Piece Fluorocarbon FKM 90 Duro

OSK™ SAE Boss O-Ring Seal Kit The 900 series of dash numbers identifies the 20 sizes of boss seals. Except for size -901, the digits after the...
2
$55.00

Add:

Quantity Discounts
1-9$55.00
10-24$49.50
25+$41.25