Naval Engineering Specification
(NES 837, NES 779, NES 780, NES 831) and USA MIL-Spec
release materials.
We have a full part number listing
allowing us to quote for tube by NATO stock number
or we can advise on the likely size you require from
the nominal or in-situ measured dimensions.
| "Manufacturers,
not just distributors" |
|
NES
780
CuNi30 |
|
NES
779
CuNi10 |
|
NES
738
Copper |
|
NOMINAL SIZES: INCHES |
NOMINAL
SIZES: INCHES |
NOMINAL
SIZES: INCHES |
| o.d.
|
wall
|
bore
|
- |
o.d.
|
wall
|
- |
o.d.
|
wall
|
- |
Bore
|
| In
|
in
|
in
|
Class
|
In
|
in
|
Class
|
In
|
in
|
SWG
|
In
|
| 0.250
|
0.035 |
- |
2.200 |
0.471 |
0.048 |
|
0.125
|
0.064
|
18
|
|
| 0.250
|
0.049 |
- |
2.350 |
0.596 |
0.048 |
|
0.188
|
0.064
|
20
|
|
| 0.250
|
0.058 |
- |
3.4500
|
0.846 |
0.048 |
|
0.25
|
0.064
|
20
|
|
| 0.346
|
0.062 |
1/4 |
3.4000 |
1.112 |
0.056 |
|
0.25
|
0.064
|
16
|
1/4 |
| 0.346
|
0.064 |
1/4 |
2.350 |
1.362 |
0.056 |
|
0.375
|
0.064
|
20
|
|
| 0.405
|
0.065 |
1/8 |
3.3000 |
1.612
|
0.056
|
1-175
|
0.5
|
0.064
|
16
|
|
| 0.405
|
0.086
|
1/8 |
3.3000
|
2.128
|
0.064
|
|
0.5
|
0.064
|
20
|
|
| 0.471
|
0.064
|
3/8 |
2.350
|
2.628
|
0.064
|
|
0.5
|
0.064
|
16
|
1/2
|
| 0.500
|
0.035
|
-
|
2.200
|
3.144
|
0.072
|
|
0.5
|
0.064
|
16
|
|
| 0.500
|
0.072
|
-
|
2.700
|
3.660
|
0.080
|
|
0.5
|
0.064
|
15
|
1/2
|
| 0.500
|
0.109
|
-
|
3.300
|
4.184
|
0.092
|
|
0.625
|
0.064
|
20
|
|
| 0.500
|
0.134
|
-
|
3.4500
|
4.684
|
0.092
|
|
0.688
|
0.064
|
20
|
|
| 0.540
|
0.065
|
1/4 |
2.200
|
5.184
|
0.092
|
|
0.750
|
0.072
|
13
|
|
| 0.540
|
0.072
|
1/4 |
2.700
|
6.208
|
0.104
|
|
0.75
|
0.072
|
18
|
7/8
|
| 0.540
|
0.109
|
1/4 |
3.3000
|
7.208
|
0.104
|
|
0.938
|
0.080
|
18
|
|
| 0.540
|
0.120
|
1/4 |
3.4000
|
8.208
|
0.104
|
|
1
|
0.092
|
15
|
1"
|
| 0.540
|
0.134
|
1/4 |
3.4500
|
9.232
|
0.116
|
|
1
|
0.080
|
12
|
|
| 0.548
|
0.078
|
-
|
2.700
|
10.256
|
0.128
|
|
1.125
|
0.116
|
16
|
|
| 0.596
|
0.064
|
1/2 |
2.350
|
12.288
|
0.144
|
|
1.25
|
0.259
|
15
|
1
1/4 |
| 0.596
|
0.086
|
1/2 |
3.4000
|
|
|
|
1.25
|
0.259
|
11
|
1
1/4 |
| 0.596
|
0.064
|
1/4 |
2.350
|
|
|
|
1.5
|
0.080
|
15
|
1
1/2 |
| 0.596
|
0.086
|
7/16 |
3.4000
|
|
|
|
1.5
|
0.259
|
14
|
1
1/2 |
| 0.625
|
0.048
|
-
|
3.3000
|
|
|
|
2
|
0.259
|
14
|
2"
|
| 0.675
|
0.065
|
3/8 |
2.200
|
|
|
|
2
|
0.259
|
13
|
2"
|
| 0.675
|
0.072
|
3/8 |
2.350
|
|
|
|
2
|
0.095
|
|
|
| 0.675
|
0.083
|
3/8 |
2.700
|
|
|
|
2.5
|
0.095
|
12
|
2
1/2 |
| 0.675
|
0.120
|
3/8 |
3.3000
|
|
|
|
3
|
0.340
|
11
|
3"
|
| 0.675
|
0.165
|
3/8 |
3.4500
|
|
|
|
3
|
0.340
|
|
|
| 0.721
|
0.064
|
-
|
2.350
|
|
|
|
3.5
|
0.109
|
10
|
|
| 0.840
|
0.065
|
1/2 |
2.200
|
|
|
|
4
|
0.116
|
9
|
|
| 0.840
|
0.072
|
1/2 |
2.350
|
|
|
|
5
|
0.116
|
7
|
|
| 0.840
|
0.083
|
1/2 |
2.700
|
|
|
|
6
|
0.128
|
6
|
|
| 0.840
|
0.120
|
1/2 |
3.4000
|
|
|
|
7
|
0.114
|
5
|
|
| 0.840
|
0.148
|
1/2 |
3.3000
|
|
|
|
8
|
0.192
|
4
|
|
| 0.840
|
0.180
|
1/2 |
3.4500
|
|
|
|
|
|
|
|
| 0.846
|
0.064
|
3/4 |
2.350
|
|
|
|
|
|
|
|
| 0.900
|
0.072
|
-
|
2.700
|
|
|
|
|
|
|
|
| 1.050
|
0.065
|
3/4 |
2.200
|
|
|
|
|
|
|
|
| 1.050
|
0.095
|
3/4 |
2.700
|
|
|
|
|
|
|
|
| 1.050
|
0.165
|
3/4 |
3.3000
|
|
|
|
|
|
|
|
| 1.050
|
0.220
|
3/4 |
3.4500
|
|
|
|
|
|
|
|
| 1.112
|
0.080
|
1"
|
2.350
|
|
|
|
|
|
|
|
| 1.112
|
0.172
|
3/4 |
3.4000
|
|
|
|
|
|
|
|
| 1.315
|
0.065
|
1"
|
2.200
|
|
|
|
|
|
|
|
| 1.315
|
0.095
|
1"
|
2.350
|
|
|
|
|
|
|
|
| 1.315
|
0.109
|
1"
|
2.700
|
|
|
|
|
|
|
|
| 1.315
|
0.203
|
1"
|
3.3000
|
|
|
|
|
|
|
|
| 1.315
|
0.259
|
1"
|
3.4500
|
|
|
|
|
|
|
|
| 1.362
|
0.210
|
1"
|
3.4000
|
|
|
|
|
|
|
|
| 1.362
|
0.092
|
1
1/4 |
2.350
|
|
|
|
|
|
|
|
| 1.612
|
0.092
|
1
1/2 |
2.350
|
|
|
|
|
|
|
|
| 1.660
|
0.070
|
1
1/4 |
2.200
|
|
|
|
|
|
|
|
| 1.660
|
0.095
|
1
1/4 |
2.350
|
|
|
|
|
|
|
|
| 1.660
|
0.120
|
1
1/4 |
2.700
|
|
|
|
|
|
|
|
| 1.660
|
0.238
|
1
1/4 |
3.3000
|
|
|
|
|
|
|
|
| 1.660
|
0.340
|
1
1/4 |
3.4500
|
|
|
|
|
|
|
|
| 1.900
|
0.072
|
1
1/2 |
2.200
|
|
|
|
|
|
|
|
| 1.900
|
0.109
|
1
1/2 |
2.350
|
|
|
|
|
|
|
|
| 1.900
|
0.134
|
1
1/2 |
2.700
|
|
|
|
|
|
|
|
| 1.900
|
0.259
|
1
1/2 |
3.3000
|
|
|
|
|
|
|
|
| 1.900
|
0.340
|
1
1/2 |
3.4500
|
|
|
|
|
|
|
|
| 2.128
|
0.080
|
2"
|
2.200
|
|
|
|
|
|
|
|
| 2.128
|
0.116
|
2"
|
2.350
|
|
|
|
|
|
|
|
| 2.128
|
0.144
|
2"
|
2.700
|
|
|
|
|
|
|
|
| 2.128
|
0.318
|
2"
|
3.4000
|
|
|
|
|
|
|
|
| 2.375
|
0.120
|
2"
|
2.350
|
|
|
|
|
|
|
|
| 2.375
|
0.300
|
2"
|
3.3000
|
|
|
|
|
|
|
|
| 2.375
|
0.425
|
2"
|
3.4500
|
|
|
|
|
|
|
|
| 2.628
|
0.080
|
2
1/2 |
2.200
|
|
|
|
|
|
|
|
| 2.628
|
0.116
|
2
1/2 |
2.350
|
|
|
|
|
|
|
|
| 2.628
|
0.160
|
2
1/2 |
2.700
|
|
|
|
|
|
|
|
| 2.875
|
0.487
|
2
1/2 |
3.4500
|
|
|
|
|
|
|
|
| 3.144
|
0.128
|
3"
|
2.350
|
|
|
|
|
|
|
|
| 3.144
|
0.176
|
3"
|
2.700
|
|
|
|
|
|
|
|
| 3.660
|
0.144
|
3
1/2 |
2.350
|
|
|
|
|
|
|
|
| 4.184
|
0.104
|
4"
|
2.200
|
|
|
|
|
|
|
|
| 5.394
|
0.192
|
5"
|
2.350
|
|
|
|
|
|
|
|
| 5.563
|
0.203
|
|
