MIL-DTL-28840/27D
V
F
M
Y
Dash
Designator
thread
max
dia
dia
no.
(see note 1)
max
max
dim
class 2
1
A (11)
1.000-20UNEF
1.12 (28.5)
1.19 (30.23)
3.50
2
1.000-20UNEF
1.12 (28.5)
1.19 (30.23)
(88.9)
B (13)
3
1.188-18UNEF
1.25 (31.8)
1.38 (35.1)
4
1.000-20UNEF
1.12 (28.5)
1.19 (30.23)
3.69
5
1.188-18UNEF
1.25 (31.8)
1.38 (35.1)
(93.73)
C (15)
6
1.438-18UNEF
1.43 (36.3)
1.63 (41.4)
7
1.750-18UNS
1.62 (41.2)
1.94 (49.3)
8
1.438-18UNEF
1.43 (36.3)
1.63 (41.4)
9
D (17)
1.750-18UNS
1.62 (41.2)
1.94 (49.3)
3.81
(96.8)
10
2.00-18UNS
1.81 (46.0)
2.19 (55.6)
11
1.438-18UNEF
1.43 (36.3)
1.63 (41.4)
12
1.750-18UNS
1.62 (41.2)
1.94 (49.3)
E (19)
2.00-18UNS
1.81 (46.0)
2.19 (55.6)
13
14
1.750-18UNS
1.62 (41.2)
1.94 (49.3)
15
F (23)
2.00-18UN
1.81 (46.0)
2.19 (55.6)
4.19
16
2.250-16UN
2.18 (55.4)
2.44 (62.0)
(106.4)
17
1.750-18UNS
1.62 (41.2)
1.94 (49.3)
18
2.00-18UN
1.81 (46.0)
2.19 (55.6)
G (25)
19
2.250-16UN
2.18 (55.4)
2.44 (62.0)
20
2.500-16UN
2.56 (65.0)
2.69 (68.3)
4.50
21
2.250-16UN
2.18 (55.4)
2.44 (62.0)
(114.3)
H (29)
22
2.500-16UN
2.56 (65.0)
2.69 (68.3)
23
2.500-16UN
2.56 (65.0)
2.69 (68.3)
4.83
J (33)
(122.7)
24
3.00-16UN
3.06 (77.8)
3.19 (81.0)
3.50
25
A (11)
1.188-18UNEF
1.25 (31.8)
1.38 (35.1)
(88.9)
NOTES:
1.
Shell sizes are provided within parentheses for information and are not a part of the designator.
2.
Dimensions are in inches.
3.
Metric equivalents are given for information only.
4.
Dimensions apply after plating.
FIGURE 1. Dimensions and configurations - Continued.
7
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