MIL-DTL-28840/27D
B
C
A
Dash
Designator
max
thread
thread
no.
(see note 1)
class 2B
dia
class 2
1.028
1
A (11)
.750-20UNEF
.875-20UNEF
(16.11)
2
1.141
.875-20UNEF
B (13)
.875-20UNEF
(28.98)
3
1.000-20UNEF
4
.875-20UNEF
1.263
5
1.000-20UNEF
(32.08)
1.000-20UNEF
C (15)
6
1.125-18UNEF
7
1.250-18UNEF
1.125-18UNEF
8
1.387
1.125-18UNEF
9
D (17)
1.250-18UNEF
(38.23)
10
1.625-18UNEF
11
1.125-18UNEF
1.513
1.250-18UNEF
12
1.250-18UNEF
E (19)
(38.43)
1.625-18UNEF
13
14
1.250-18UNEF
1.703
1.438-18UNEF
15
F (23)
1.625-18UNEF
(43.26)
16
1.875-18UNS
17
1.250-18UNEF
1.825
18
1.625-18UNEF
G (25)
(46.35)
1.562-18UNEF
19
1.875-18UNS
20
2.125-16UN
21
1.875-16UN
2.143
1.875-18UNS
H (29)
(54.43)
22
2.125-16UN
2.329
23
2.125-16UN
J (33)
2.062-16UNS
(59.16)
24
2.750-16UN
1.028
25
A (11)
.750-20UNEF
.875-20UNEF
(16.11)
FIGURE 1. Dimensions and configurations - Continued.
5
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