MIL-DTL-2710C
TABLE III. Physical properties for type I detachable links - Continued.
Link size
Type I,
Proof load
Minimum breaking
(inches)
class
(lbs)
load (lbs)
3-1/2 HD 1
2
1,080,000
1,700,000
3-5/8 2
-
-
1,045,900
3-3/4
1,575,000
3-7/8 2
1
-
-
42
-
-
4-3/4
1,700,000
2,550,000
1
HD - Heavy duty. Also can be used for class 1 corresponding size.
2
Detachable links for these sizes have not been developed. The proof and minimum
breaking loads will be indicated as the detachable links are developed.
TABLE IV. Physical properties for type II detachable links.
Minimum
Link size 1
Link
Proof load
breaking
number
(inches)
(lbs)
load (lbs)
119,000
88,200
3/4 HS - 7/8 HS
2
195,000
145,000
1 HS - 1-1/8 HS
3
340,000
252,000
1-1/4 HS - 1-1/2 HS
4
476,000
352,000
1-5/8 HS - 1-3/4 HS
5
-2
675,000
447,000
2-1/8 - 2-3/8
6
1,150,000
762,000
2-1/2 - 3-1/8
7
- 2-3/4 HD
- 3 HD
1,700,000
1,080,000
3-1/4 - 3-1/2
8
- 3-1/2 HD
1
HS - High strength; HD - Heavy duty.
3.14 Breaking load. The detachable link shall withstand the minimum breaking load
specified in table III (type I) or table IV (type II) without failure (see 4.5.2).
3.15 Markings. Markings shall be as described in 3.15.1 and 3.15.2.
3.15.1 Size markings. Each C-link and right hand coupling plate of the detachable link
shall be permanently marked in raised letters and figures to indicate the size of the link. The
letters and figures shall be clear, readable, and of the size, embossed height, and location as
specified in the drawing specified in 3.7 (see 4.4.4).
3.15.2 Property markings. Each C-link of the detachable link shall be permanently
marked in raised letters with "US MILITARY PROPERTY". The letters shall be clear and
readable in normal operational use, and the marking size shall satisfy the legibility requirements
of MIL-STD-130 (see figure 3).
8
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