MS51868D
TA8LE II. Clamp type III, class 1 weight minimum in lbs. 1/
Type III Class 1 |
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Clamp size |
Weight minimum |
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Inches |
mm |
lbs. |
kg |
3/16 (.188) 1/4 (.250) 5/16 (.3125) 3/8 (.375) 7/16 (.4375) 1/2 (.500) 9/16 (.5625) 5/8 (.625) 3/4 (.750) 7/8 (.875) 1 (1.00) 1-1/8 (1.125) 1-1/4 (1.250) 1-3/8 (1.375) 1-1/2 (1.500) |
4.77 6.35 7.95 9.52 11.12 12.70 14.28 15.87 19.05 22.22 25.40 28.57 31.75 34.92 38.10 |
.21 .21 .26 .37 .48 .60 1.08 1.08 1.34 2.20 2.68 2.96 4.03 6.58 6.58 |
0.0952 0.0952 0.1179 0.1678 0.2177 0.2721 0.4898 0.4898 0.6078 0.9979 1.2156 1.3426 1.8279 2.9846 2.9846 |
1/ Metric equivalents are given for information only.
REQUIREMENTS:
Clamps shall be in accordance with figure 1, figure 2, and table I and table II.
Material steel, carbon shall be in accordance with type III, class I and type III, class 2 of FF-C-450.
8olts of class 2 clamps shall be equivalent to SAE-J429 or ASTM-A449 grade 5 steel or better.
Protective coating:
Finish Code |
Finish |
A |
Protective coating shall be, mechanically deposited zinc coating in accordance with ASTM-8695, class 50, type II, or zinc coated (hot dip galvanized) in accordance with ASTM-A153/A153M or zinc coated (electrodeposited) in accordance with ASTM-8633, Fe/Zn 5, type VI. |
C |
Cadmium plated, in accordance with SAE-AMS-QQ-P-416, type II, class 3. |
Z1 |
Zinc coating, hot-dip, in accordance with ASTM-A153/A153M |
Z2 |
Zinc coating (electrodeposited) in accordance with ASTM-8633, Fe/Zn 5, type VI.(protects to 120hr in salt spray in accordance with ASTM-8117 and environmentally friendly) |
Z3 |
Zinc coating, mechanically deposited, in accordance with ASTM-8695, class 50, type II (Chromate) |
Z4 |
Zinc coating, mechanically deposited, in accordance with ASTM-8695, class 50, type I (Plain zinc; lowest cost protection, but may be environmentally friendly) |
Environmental safety note:
If at all possible and for a safer environment, do not use cadmium or chromate conversion. Recommend to use
"Z2" ASTM-8633, Fe/Zn 5, type VI.
Threads shall be in accordance with FF-C-450 specification. Marking shall be in accordance with FF-C-450 specification.
For design feature purposes, this specification takes precedence over acquisition documents referenced herein.
In the event of a conflict between the text of this specification sheet and the references cited herein, the text of this specification sheet shall take precedence.
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