UFC 4-159-03
3 October 2005
Table 7-2. Fixed Ships' Bitts (minimum strength requirements)*
NAVSEA FIXED BITTS (after 804-1843362 REV B OF 1987)
NOMINAL SIZE (inches)
4
8
10
12
14
18
MAX. LINE CIR. (inches)
3
5
6.5
8
10
12
MAX. LINE DIA. (inches)
1.0
1.6
2.1
2.5
3.2
3.8
MAX. MOMENT (lbf-in x 1000)
134
475
1046
1901
3601
6672
MAX. CAPACITY (lbf x 1000)*
26.8 73.08
123.1
181
277
417
A - BASE LENGTH (inches)
16.5 28.63
36.75
44.25
52.5
64
B - BARREL DIA. (inches)
4.5 8.625
10.75
12.75
14
18
C - BARREL HT. (inches)
10
13
17
21
26
32
D - BASE WIDTH (inches)
7.5 13.63
17.25
20.25
22.5
28
MAX. LINE CIR. (mm)
76
127
165
203
254
305
MAX. CAPACITY (newton x 100000)*
1.19
3.25
5.47
8.05
12.32
18.55
A - BASE LENGTH (inches)
419
727
933
1124
1334
1626
B - BARREL DIA. (inches)
114
219
273
324
356
457
C - BARREL HT. (inches)
254
330
432
533
660
813
D - BASE WIDTH (inches)
191
346
438
514
572
711
* force applied at half the barrel height
*Note that the design of these bitts has changed over the years, so different classes of ships may have
different designs. The way the bitts are used may also influence their working capacity. Contact
NAVSEASYSCOM for additional information.
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