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SECTION II. EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST - TM-55-1905-223-24-70172
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TM-55-1905-223-24-7 Reverse Osmosis Watermaker for Landing Craft Utiliy (LCU) NSN
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Table D-1. Capscrew Markings and Torque Values
TM 55-1905-223-24-7
APPENDIX D
TORQUE VALUES
D-1.
Scope. SAE capscrews are graded according to the strength of the capscrew. They are marked on the head so
the correct strength and torque value are known. The tables in this appendix will list the capscrew markings with correct
torque values as well as values for pipe plugs and metric bolts.
CAUTION
When replacing capscrews, always use a capscrew of  the same
measurement and strength as the capscrew  being replaced.  Using
incorrect capscrews can result in equipment damage. Bolts threaded
into aluminum require much less torque.
NOTE
Always use torque values listed in the tables when specific torque values
are unknown. The torque values listed in the tables are based on the
use of lubricated threads.
Table D-1. Capscrew Markings and Torque Values
Capacity
SAE Grade #5
SAE Grade #6 or #7
SAE Grade #8
Body Size
Cast Iron or Steel
Cast Iron or Steel
Cast Iron or Steel
Torque
Torque
Torque
Inches-Thread
ft-lb
kgm
Nm
ft-lb
kgm
Nm
ft-lb
kgm
Nm
-20
8
1.1064 10.8465
10
1.3630 13.5582
12
1.6596
16.2698
-28
10
1.3830 13.5582
14
1.9362
18.9815
5/16
-18
17
2.3511 23.0489
19
2.6277 25.7605
24
3.3192
32.5396
-24
19
2.6277 25.7605
27
3.7341
36.6071
3/8
-16
31
4.2873 42.0304
34
4.7022 46.097844
6.0852
59.6560
-24
35
4.8405 47.4536
49
6.7767
66.4351
7/16
-14
49
6.7767 66.4351
55
7.6065 74.5700
70
9.6810
94.9073
-20
55
7.6065 74.5700
78
10.7874
105.7538
1/2
-13
75
10.3725 101.6863
85
11.7555 115.2445
105
14.5215
142.3609
-20
85
11.7555 115.2445
120
16.5860
162.6960
9/16
-12
110
15.2130 149.1380
120
16.5960 162.6960
155
21.4365
210.1490
-18
120
16.5960 162.6960
170
23.5110
230.4860
5/8
-11
150
20.7450 203.3700
167
23.0961 226.4186
210
29.0430
284.7180
-18
170
23.5110 230.4860
240
33.1920
325.3920
3/4
-10
270
37.3410 366.0660
280
38.7240 379.6240
375
51.8625
508.4250
-16
295
40.7985 399.9610
420
58.0860
568.4360
7/8
-9
395
54.6285 535.5410
440
60.8520 596.5520
605
83.6715
820.2590
-14
435
60.1605 589.7730
675
93.3525
915.1650
1.0
-8
590
81.5970 799.9220
660
91.2780 894.8280
910
125.8530
1233.7780
-14
660
91.2780 849.8280
990
136.9170
1342.2420
D-1

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