DIMENSIONS

NOM. DIA.

(A)

(B)

�.006

(C)

+.000  -.030

(D)

(E)

(G) 

MAX.

(H)

 MIN.

(J)

 MIN.

DOUBLE SHEAR STEEL

MAX.

MIN.

MAX.

MIN.

MAX.

MIN.

3/16

.1885

.1870

.220

.260

.310

.250

.500

.380

.830

.480

.760

4600

1/4

.2485

.2470

.289

.290

.310

.250

.500

.380

.890

.480

.760

8200

5/16

.3110

.3095

.375

.330

.310

.250

.500

.380

.930

.480

.760

12800

3/8

.3735

.3720

.440

.365

.390

.300

.625

.510

1.040

.720

.850

18400

1/2

.4985

.4970

.594

.460

.565

.435

.800

.630

1.190

.720

.850

32800

5/8

.6235

.6220

.750

.580

.580

.450

.975

.810

1.500

.950

.905

51200

3/4

.7485

.7470

.887

.670

.700

.570

1.000

.810

1.680

1.140

.980

73600

SPECIFICATIONS

PART NAME

ALLOY STEEL

CORROSION RESISTANT

BODY & SPINDLE

STEEL 4130 (MIL-T-6736 OR MIL-S-6758)

CRES 17-4PH (AMS 5643) OR PH15-7MO (AMS 5657)

BALLS

CRES 440C (QQ-S-763)

CRES 440C (QQ-S-763)

BUTTONS

MILD STEEL (ASTM-A-108) OR 

ALUMINUM 2024/2017 (QQ-A-225/6 OR /5)

CRES 303 (ASTM-A-581/582) OR 

ALUMINUM 2024/2017 (QQ-225/6 OR /5)

"B" BUTTON HEAD

MILD STEEL (ASTM-A-108) OR 

ALUMINUM 2024/2017 (QQ-A-225/6 OR /5)

CRES 303 (ASTM-A-581/582) OR 

ALUMINUM 2024/2017 (QQ-225/6 OR /5)

"TA"/"LA" HEAD

ALUMINUM CASTING 380 (QQ-A-591)

ALUMINUM CASTING 380 (QQ-A-591)

"R" HANDLE RING

CRES 302 (ASTM-A-313)

CRES 302 (ASTM-A-313)

"R" HANDLE HEAD

MILD STEEL (ASTM-A-108)

CRES 303 (ASTM-A 581/582)

COLLAR (ON ALUM.

 HANDLES ONLY)

MILD STEEL (ASTM-A-108 OR 366)

CRES 300 SERIES (ASTM-A-581/582 OR QQ-S-766)

SPRING/ATTACHING RING

MUSIC WIRE (ASTM-A-228)

CRES 17-7PH (AMS 5678) OR 302 (ASTM-A-313)

GRIP LENGTHS PART NUMBER - B TYPE

PIN DIA.

1/2

1

1-1/2

2

2-1/2

3

3-1/2

4

5

3/16

-

551-01

-

-

-

-

-

-

-

1/4

551-10

551-11

551-12

551-13

551-14

551-15

-

551-17

-

5/16

-

-

-

551-23

551-24

551-25

-

551-27

-

3/8

-

551-31

551-32

551-33

551-34

551-35

-

551-37

-

1/2

-

551-41

551-42

551-43

551-44

551-45

-

551-47

-

5/8

-

-

-

551-53

551-54

551-55

551-56

551-57

551-59

3/4

-

-

-

551-63

551-64

551-65

551-66

551-67

551-69