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V-Block replacement part numbers

Part No.

Desc.

Sheave 

Ø (mm)

Sheave 

width  
(mm)

Maximum 

work-

ing load 

(MWL) kg

Cheek: Carbon/Aluminum

Mylar 

washer

Rollers

Fastener

Size (mm)

Alpha

Spacer/

Thread insert

Beta

Sheave

Inner  

race

Cage

Order

Qty

BHCS

3294

1.5T

47

14

1500

H-71542*

H-71224/

H-46397* MS-524

MS-539 H-73941* MS-525

30

HFS1360.SATIN*

4X.7X6 

3295

3T

56

14

3000

H-71221*

H-71224/

H-46397* MS-531

MS-540 H-73780* MS-525

36

HFS1360.SATIN*

4X.7X6 

3296

5T

62

19

5000

H-71575*

H-71577/

H-46397* MS-528

MS-541 H-73939* MS-535

38

HFS1359.SATIN*

4X.7X10 

3297

6.5T

82

24

6500

H-71590*

H-71591/

H-46398* MS-534

MS-542 H-73977* MS-536

40

HFS1369.SATIN*

5X.8X12 

3294AL 1.5T

47

14

1500

AL-3795

/MS-210** AL-3796 H-46397

MS-524

MS-539 H-73941* MS-525

30

HFS1370

4X.7X16

3366AL 1.5TW 47

23

1500

H-78676

/MS-210** H-78677 H-46397 H-78674

H-78675 H-73941* MS-525

30

HFS1371

4X.7X20

3295AL

3T

56

14

3000

AL-3797

/MS-210** AL-3798 H-46397

MS-531

MS-540 H-73780* MS-525

36

HFS1370

4X.7X16 

3367AL

3W

56

14

3000

H-78326

/MS-210** H-78327 H-46397

MS-562

MS-561 H-73780* MS-525

36

HFS1371

4X.7X16 

3296AL

5T

62

19

5000

AL-3799

/MS-210** AL-3851 H-46397

MS-528

MS-541 H-73939* MS-535

38

HFS1371

4X.7X20

3362AL 5TW

62

27

5000

AL-4099

/MS-210** AL-4098 H-46397

MS-550

MS-551 H-73939* MS-535

38

HFS446

4X.7X25

3297AL 6.5T

82

24

6500

AL-3852

/MS-220** AL-3853 H-46398

MS-534

MS-542 H-73977* MS-536

40

HFS1147

5X.8X20 

3368AL 6.5W

82

46

6500

AL-3858

/MS-220** AL-3859

H-81835

H-81834 H-73977* MS-536

40

H-81830

5X.8X35

3363AL

8T

104

27

8000

AL-4097

/MS-251** AL-4096

MS-553

MS-552 H-74985* MS-554

46

HFS435

6X1X25

3369AL

8W

104

51

8000

AL-3856

/MS-251** AL-3857

H-81791

H-81790 H-74985* MS-554

46

H-81789

6X1X40

3370AL

12T

120

29

12000

AL-3854

/MS-253** AL-3855

H-81306

H-81679 H-81308* MS-554

54

HFS435

6X1X25

3371AL

16T

135

34

16000

H-81768

/MS-253** H-81769

H-81765

H-81766 H-81767* MS-554

64

HFS436

6X1X30 

3372AL

20T

155

36

20000

H-81740

/MS-253** H-81739

H-81061

H-81738 H-81064* H-81062 66

HFS436

6X1X30

 *Two required per block.

  

**Aluminum Alpha cheek includes thread insert.w

Assembly Notes, Torque Specifications, and Reorder Parts

Aluminum Beta cheek 

Aluminum 

Alpha cheek

Thread insert depth

Thread insert

Sheave

Cage and rollers

Cage and rollers

Inner race

Fastener

Carbon cheek

Fastener

Spacer

Cage and rollers

Inner race

Sheave

Cage and rollers

Sheave width

Carbon cheek

Fastener

Carbon V Block

Aluminum V Block

Block

Fastener

Max torque (Carbon/Al)

in-lb

Nm

1.5T, 3T, 5T

M4

15

1.7

6.5T

M5

25

2.8

8T

M6

30

3.4

Secure screws using Loctite

®

 222 purple thread 

locking solution. 

Sheave and bearing assembly: One side of inner race has a cutout in 
lip. Bearing cage is split. Use cutout and split cage to disassemble and 
reassemble. IMPORTANT! Do not force cage or it can break. 

Cutout in lip

Split bearing cage 
and cutout in inner 
race lip

Assembly sequence

Cutout

Split in 
cage 

Mylar washer

Mylar washer

Mylar

®

 washer

Printed in USA  5097  7/19

For additional safety, maintenance, and warranty information; www.harken.com/manuals or the Harken catalog.

Warranty

Loctite is a registered trademark of Henkel AG & Company KGaA.                    
Mylar is a registered trademark of DuPont Teijin Films U.S. Limited Partnership.

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