Discount Marine Source

	Harken blocks have become widely accepted as the industry standard for ball bearing blocks. We, at Discount Marine Source, are you complete source for all Harken Blocks. From the smallest control line block on a dinghy, to large Big Boat Blocks.
Ball Bearing Blocks

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Wire Blocks

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Harken, 1" Wire Forkhead Block w/Bkt, 466

Regular Price: $33.50
On Sale For: $28.48

Part # HAR-466

Manufacturer Part # 466

Description: Single/becket

Sheave dia. (in): 1

Sheave dia. (mm): 25

Weight (oz): 1.02

Weight (g): 29

Max. wire dia. (in): 3/32

Max. wire dia. (mm): 2

Max. line dia. (in): 5/32

Max. line dia. (mm): 4

Shackle pin dia. (in): 3/16

Shackle pin dia. (mm): 5

Max. working load (lb): 1000

Max. working load (kg): 454

Breaking load (lb): 2000

Breaking load (kg): 907

Quantity:

Harken, 1.00 Single Wire Block w/Becket, 312

Regular Price: $37.25
On Sale For: $31.66

Part # HAR-312

Manufacturer Part # 312

Description: Single/becket

Sheave dia. (in): 1

Sheave dia. (mm): 25

Weight (oz): 1.25

Weight (g): 35

Max. wire dia. (in): 3/32

Max. wire dia. (mm): 2

Max. line dia. (in): 5/32

Max. line dia. (mm): 4

Shackle pin dia. (in): 3/16

Shackle pin dia. (mm): 5

Max. working load (lb): 1000

Max. working load (kg): 454

Breaking load (lb): 2000

Breaking load (kg): 907

Quantity:

Harken, 1.00 Single Wire Block, 300

Regular Price: $32.10
On Sale For: $27.29

Part # HAR-300

Manufacturer Part # 300

Description: Single

Sheave dia. (in): 1

Sheave dia. (mm): 25

Weight (oz): 1

Weight (g): 28

Max. wire dia. (in): 3/32

Max. wire dia. (mm): 2

Max. line dia. (in): 5/32

Max. line dia. (mm): 4

Shackle pin dia. (in): 3/16

Shackle pin dia. (mm): 5

Max. working load (lb): 1000

Max. working load (kg): 454

Breaking load (lb): 2000

Breaking load (kg): 907

Quantity:

Harken, 1.00 Wire Cheek Block w/Fasteners, 301

Regular Price: $32.80
On Sale For: $27.88

Part # HAR-301

Manufacturer Part # 301

Description: Cheek+ *

Sheave dia. (in): 1

Sheave dia. (mm): 25

Weight (oz): 1.25

Weight (g): 35

Max. wire dia. (in): 3/32

Max. wire dia. (mm): 2

Max. line dia. (in): 5/32

Max. line dia. (mm): 4

Shackle pin dia. (in): -

Shackle pin dia. (mm): -

Max. working load (lb): 1000

Max. working load (kg): 454

Breaking load (lb): 2000

Breaking load (kg): 907

Quantity:

Harken, 1.00 Wire Sheave, 303

Regular Price: $20.95
On Sale For: $17.81

Part # HAR-303

Manufacturer Part # 303

Line (in): 5/32

Line (mm): 4

Center pin dia. (in): 3/16

Center pin dia. (mm): 4.75

Weight (g): 7

Max. wire dia. (in): 3/32

Max. wire dia. (mm): 2

Max. working load (lb): 1000

Max. working load (kg): 454

Description: Wire

Sheave dia. (in): 1

Sheave dia. (mm): 25

Width (in): 9/32

Width (mm): 7

Weight (oz): .25

Quantity:

Harken, 1.00 Wire Thru Deck Block, 302

Regular Price: $40.60
On Sale For: $34.51

Part # HAR-302

Manufacturer Part # 302

Max. working load (kg): 454

Breaking load (lb): 2000

Breaking load (kg): 907

Description: Thru-deck*

Sheave dia. (in): 1

Sheave dia. (mm): 25

Weight (oz): 1

Weight (g): 28

Max. wire dia. (in): 3/32

Max. wire dia. (mm): 2

Max. line dia. (in): 5/32

Max. line dia. (mm): 4

Shackle pin dia. (in): -

Shackle pin dia. (mm): -

Max. working load (lb): 1000

Hole spacing (in): 2 1/8

Cutout (in): 13/32 x 1 17/32

Cutout (mm): 11 x 39

Hole spacing (mm): 54

Quantity:

Harken, 1.50 Ferrule Head Wire Block, 320

Regular Price: $59.70
On Sale For: $50.75

Part # HAR-320

Manufacturer Part # 320

Description: Ferrule head

Sheave dia. (in): 1 1/2

Sheave dia. (mm): 38

Weight (oz): 3

Weight (g): 85

Max. wire dia. (in): 1/8

Max. wire dia. (mm): 3

Max. working load (kg): 680

Breaking load (lb): 3000

Breaking load (kg): 1361

Max. line dia. (in): 3/16

Max. line dia. (mm): 5

Shackle pin dia. (in): -

Shackle pin dia. (mm): -

Max. working load (lb): 1500

Quantity:

Harken, 1.50 Single Wire Block w/Becket, 313

Regular Price: $56.05
On Sale For: $47.64

Part # HAR-313

Manufacturer Part # 313

Breaking load (kg): 1361

Description: Single/becket

Sheave dia. (in): 1 1/2

Sheave dia. (mm): 38

Weight (oz): 3

Weight (g): 85

Max. wire dia. (in): 1/8

Max. wire dia. (mm): 3

Max. line dia. (in): 3/16

Max. line dia. (mm): 5

Shackle pin dia. (in): 1/4

Shackle pin dia. (mm): 6

Max. working load (lb): 1500

Max. working load (kg): 680

Breaking load (lb): 3000

Quantity:

Harken, 1.50 Single Wire Block, 304

Regular Price: $50.50
On Sale For: $42.93

Part # HAR-304

Manufacturer Part # 304

Description: Single

Sheave dia. (in): 1 1/2

Sheave dia. (mm): 38

Weight (oz): 2.75

Weight (g): 78

Max. wire dia. (in): 1/8

Max. wire dia. (mm): 3

Max. line dia. (in): 3/16

Max. line dia. (mm): 5

Shackle pin dia. (in): 1/4

Shackle pin dia. (mm): 6

Max. working load (lb): 1500

Max. working load (kg): 680

Breaking load (lb): 3000

Breaking load (kg): 1361

Quantity:

Harken, 1.50 Split Backstay Plate, 321

Regular Price: $20.35
On Sale For: $17.30

Part # HAR-321

Manufacturer Part # 321

Description: Small split backstay plate for 304

Sheave dia. (in): -

Sheave dia. (mm): -

Weight (oz): 1

Weight (g): 28

Max. wire dia. (in): -

Max. wire dia. (mm): -

Max. line dia. (in): -

Max. line dia. (mm): -

Shackle pin dia. (in): -

Shackle pin dia. (mm): -

Max. working load (lb): -

Max. working load (kg): -

Breaking load (lb): -

Breaking load (kg): -

Quantity:

Harken, 1.50 Wire Cheek Block w/Fasteners, 305

Regular Price: $51.50
On Sale For: $43.78

Part # HAR-305

Manufacturer Part # 305

Description: Cheek+ **

Sheave dia. (in): 1 1/2

Sheave dia. (mm): 38

Weight (oz): 3.25

Weight (g): 92

Max. wire dia. (in): 1/8

Max. wire dia. (mm): 3

Max. line dia. (in): 3/16

Max. line dia. (mm): 5

Shackle pin dia. (in): -

Shackle pin dia. (mm): -

Max. working load (lb): 1500

Max. working load (kg): 680

Breaking load (lb): 3000

Breaking load (kg): 1361

Quantity:

Harken, 1.50 Wire Sheave, 307

Regular Price: $32.75
On Sale For: $27.84

Part # HAR-307

Manufacturer Part # 307

Line (in): 3/16

Line (mm): 5

Center pin dia. (in): 1/4

Center pin dia. (mm): 6.27

Description: Wire

Sheave dia. (in): 1 1/2

Sheave dia. (mm): 38

Width (in): 13/32

Width (mm): 10

Weight (oz): 1

Weight (g): 28

Max. wire dia. (in): 1/8

Max. wire dia. (mm): 3

Max. working load (lb): 1500

Max. working load (kg): 680

Quantity:

Harken, 1.50 Wire Thru Deck Block, 306

Regular Price: $57.55
On Sale For: $48.92

Part # HAR-306

Manufacturer Part # 306

Description: Thru-deck*

Sheave dia. (in): 1 1/2

Sheave dia. (mm): 38

Weight (oz): 3.25

Weight (g): 92

Max. wire dia. (in): 1/8

Max. wire dia. (mm): 3

Max. line dia. (in): 3/16

Max. line dia. (mm): 5

Shackle pin dia. (in): -

Shackle pin dia. (mm): -

Max. working load (lb): 1500

Max. working load (kg): 680

Breaking load (lb): 3000

Breaking load (kg): 1361

Quantity:

Harken, 1.75 Dinghy Thru Deck Block w/Coverplate, 046

Regular Price: $44.60
On Sale For: $37.91

Part # HAR-046

Manufacturer Part # 046

Cutout (in): 1 1/16 x 2 1/16

Cutout (mm): 27 x 68

Hole spacing (in): 1 1/2 and 2

Hole spacing (mm): 38 and 51

Description: Thru-deck*

Sheave dia. (in): 1 3/4

Sheave dia. (mm): 44

Length (in): 3

Length (mm): 76

Weight (oz): 4

Weight (g): 113

Max. line dia. (in): 3/8

Max. line dia. (mm): 10

Shackle pin dia. (in): -

Shackle pin dia. (mm): -

Max. working load (lb): 350

Max. working load (kg): 159

Breaking load (lb): 2000

Breaking load (kg): 907

Quantity:

Harken, 100mm ESP Footblock, 6093

Regular Price: $205.00
On Sale For: $174.25

Part # HAR-6093

Manufacturer Part # 6093

Length (in): 5 11/16

Length (mm): 144

Weight (oz): 22.6

Weight (g): 642

Max. line dia. (in): 19

Max. line dia. (mm): 7500

Max. working load (lb): 7500

Max. working load (kg): 3402

Breaking load (lb): 15000

Breaking load (kg): 6804

Quantity:

Harken, 100mm Straphead Spriddle Block, 3089

Regular Price: $1,001.80
On Sale For: $851.53

Part # HAR-3089

Manufacturer Part # 3089

Max. line dia. (mm): 5/8

Max. line dia. (in): 16

Breaking load (lb): 15000

Breaking load (kg): 6804

Length (in): 9 1/4

Length (mm): 235

Description: Straphead spriddle

Sheave dia. (mm): 100/75

Max. working load (lb): 7500

Max. working load (kg): 3402

Weight w/shackle (oz): 24

Weight w/shackle (g): 680

Shackle pin dia. (in): -

Shackle pin dia. (mm): -

Quantity:

Harken, 16 mm Air Block w/Becket, 405

Regular Price: $14.70
On Sale For: $12.50

Part # HAR-405

Manufacturer Part # 405

Description: Single/becket

Sheave dia. (in): 5/8

Sheave dia. (mm): 16

Length (in): 1 1/2

Length (mm): 38

Weight (oz): .44

Weight (g): 12

Max. line dia. (in): 7/32

Max. line dia. (mm): 5

Max. working load (lb): 250

Max. working load (kg): 113

Breaking load (lb): 1200

Breaking load (kg): 544

Quantity:

Harken, 16 mm Air Block with O Ring, 404

Regular Price: $12.85
On Sale For: $10.92

Part # HAR-404

Manufacturer Part # 404

Description: Single

Sheave dia. (in): 5/8

Sheave dia. (mm): 16

Length (in): 1 1/8

Length (mm): 29

Weight (oz): .33

Weight (g): 10

Max. line dia. (in): 7/32

Max. line dia. (mm): 5

Max. working load (lb): 250

Max. working load (kg): 113

Breaking load (lb): 1200

Breaking load (kg): 544

Quantity:

Harken, 16 mm Double Air Block w/Becket , 407

Regular Price: $29.20
On Sale For: $24.82

Part # HAR-407

Manufacturer Part # 407

Description: Double/becket

Sheave dia. (in): 5/8

Sheave dia. (mm): 16

Length (in): 2 1/8

Length (mm): 54

Weight (oz): 1

Weight (g): 28

Max. line dia. (in): 7/32

Max. line dia. (mm): 5

Max. working load (lb): 450

Max. working load (kg): 204

Breaking load (lb): 1200

Breaking load (kg): 544

Quantity:

Harken, 16 mm Double Air Block, 406

Regular Price: $26.70
On Sale For: $22.70

Part # HAR-406

Manufacturer Part # 406

Description: Double

Sheave dia. (in): 5/8

Sheave dia. (mm): 16

Length (in): 1 11/16

Length (mm): 43

Weight (oz): .94

Weight (g): 27

Max. line dia. (in): 7/32

Max. line dia. (mm): 5

Max. working load (lb): 450

Max. working load (kg): 204

Breaking load (lb): 1200

Breaking load (kg): 544

Quantity:

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