Crosby Catalog - McKissick Snatch Blocks

Sheave Diameter (in.)	Bearing Code	Stock No.			Wire Rope Size § (in.)	Working Load Limit * (metric tons)	Weight Each (lbs.)
Sheave Diameter (in.)	Bearing Code	430 with Hook	431 with Shackle	407 Tail Board	Wire Rope Size § (in.)	Working Load Limit * (metric tons)	430 with Hook	431 with Shackle	407 Tail Board
8	BB RB	208448 169882	169891 209214	184286 168017	1	20	75	87	42
8	BB RB	120023 120041	121022 121040	103523 103541	1 1/8	20	75	87	42
10	BB RB	208475 208509	209232 209269	184311 184348	1	20	89	101	55
10	BB RB	120096 120112	121095 121111	103603 103621	1 1/8	20	89	101	55
12	BB RB	208536 208554	169917 209303	184375 184393	1	20	103	115	70
12	BB RB	120176 120194	121175 121193	103685 103701	1 1/8	20	103	115	70
14	BB RB	208572 208590	209321 170424	184419 184437	1	20	123	135	90
14	BB RB	120256 120274	121255 121273	103765 103783	1 1/8	20	123	135	90
18	BB RB	208689 208732	209410 209465	184552 184605	1	25	240	260	165
18	BB RB	119482 119491	119561 119570	119641 119650	1 1/8	25	240	260	165
20	BB RB	- 208787	209483 169864	184623 184650	1 1/8	30	375	400	215
20	BB RB	119507 119516	119589 119598	119669 119678	1 1/4	30	375	400	215
24	BB RB	208812 208858	209526 209553	184687 184721	1 1/8	30	450	475	290
24	BB RB	119525 119534	119605 119614	119687 119696	1 1/4	30	450	475	290

* Ultimate Load is 4 times the Working Load Limit.
§ May be furnished in other Wire Rope sizes.