UFC 4-159-03
3 October 2005
Table 7-3. Closed Chocks (minimum strength requirements)
NAVSEA CLOSED CHOCKS (from Drawing 804-1843363)
CHOCK SIZE (inches)
6
10
13
16
20
24
MAX. LINE CIR. (inches)
3
5
6.5
8
10
12
LINE BREAK (lbf x 1000)
26.8
73
123
181
277
417
A - HOLE WIDTH (inches)
6
10
13
16
20
24
B - HOLE HEIGHT (inches)
3
5
6.5
8
10
12
C - HEIGHT (inches)
8.5 11.25
13.88
16.75
25.75
25.25
D - BASE THICKNESS (inches)
5.25
6.5
7.5
9
16
13.5
E - LENGTH (inches)
13
19
23
28
38.75
40
MAX. LINE CIR. (mm)
76
127
165
203
254
305
LINE BREAK (newton x 100000)
1.19
3.25
5.47
8.05
12.32
18.55
A - HOLE WIDTH (mm)
152
254
330
406
508
610
B - HOLE HEIGHT (mm)
76
127
165
203
254
305
C - HEIGHT (mm)
216
286
352
425
654
641
D - BASE THICKNESS (mm)
133
165
191
229
406
343
E - LENGTH (mm)
330
483
584
711
984
1016
148