Continued from Thread Identification...
Please note the following guide should be used only for selecting Checkfluid Products.
Jump to: Step 1 (Thread Measurement) | Step 2 (Sealing Forms) | Step 3 (Dash Sizes)
Step 2: Sealing Forms
Locate your sealing form on the Chart below and use it to find the Checkfluid ID number associated with it in the Dash size chart (step 3)
Thread Type (click for image) |
Checkfluid # (F = Female Thread) |
Form A |
Form B |
Form C |
Form D |
Form E |
Form F |
Form G |
Type of Connection |
ISO # |
SAE # |
DIN # |
JIS # |
Seals |
Sealing Surface |
ORB |
U(F) |
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Port End |
11926
|
J1926 |
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SAE O-Ring |
Flare Bore |
JIC |
J(F) |
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Tube End |
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J514 |
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Metal |
Flare |
NPT/ NPTF |
N(F) |
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Port End |
|
J476 |
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Metal |
Thread |
ORFS |
F(F) |
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Tube End |
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J1453 |
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SAE Face Seal |
Face |
BSPP |
GB(F) |
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Cut Ring or Copper Washer
|
Face |
BSPP |
GC(F) |
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Port End |
9974
|
|
3852-1 form X or Y |
|
Recess E O-Ring |
Face |
BSPP |
GCB(F) |
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Port End |
9974
|
|
3852-1 form X or Y |
|
Bonded Washer |
Face |
BSPT |
GD(F) |
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Port End |
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|
Similar to: 3852-2 form Z |
B8363 |
Recess E O-Ring |
Face |
METRIC DIN |
MA(F) |
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Port End |
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DIN |
|
DIN O-Ring |
Step Bore |
METRIC DIN |
MB(F) |
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Port End |
9974 |
|
3852-1 |
|
Cut Ring or Copper Washer |
Face |
METRIC BW |
MCB(F) |
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Port End |
9974
|
|
3852-1 form X or Y |
|
Bonded Washer |
Face |
METRIC OR |
MCA(F) |
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Port End |
1179
|
|
3852-2 form X or Y |
|
O-Ring + Retaining Ring
|
Face |
METRIC ISO |
ME(F) |
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|
Port End |
6149
|
J2244 |
3852-3 form "W" |
|
ISO O-Ring |
Flare Bore |
Metric Taper |
MT(F) |
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Metal |
Thread |
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|
Form A |
Form B |
Form C |
Form D |
Form E |
Form F |
Form G |
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SEALING TYPE |
Boss/Step O-Ring |
Face Metal |
Face O-Ring |
Thread Metal |
Boss/C'Bore O-Ring |
Flare Metal |
Face O-Ring |
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MALE SEALING FORMS
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FEMALE SEALING FORMS |
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SEALING METHOD
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(RUBBER) DIN O-Ring O-Ring boss sealing in the female using a DIN ORing
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(METAL/ RUBBER) Flat Seal Cutting Ring Flat seal bonded or copper washer sealing in the female counter bore
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(RUBBER) Recessed Hex Seal Seals on a flat machined surface
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(METAL) Tapered Seal Seals on thread
|
(RUBBER) ISO 6149
SAE O-Ring
ISO 11926 O-Ring boss sealing in the female counter bore using an ISO 6149 ORing, SAE ORing
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(METAL) SAE 37° Flare seals on internal female flare
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O-Ring Face Seal O-Ring face sealing on the male face groove using an ORFS O-Ring
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O-Ring DIN/ ISO/ ORFS |
Flat Rubber Seal |
Bonded Seal Steel / Rubber |
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O-RING STYLES
|
ID CS |
ID |
ID
CS |
LEGEND
CS=CROSS SECTION
ID= INSIDE DIAMETER
|
RUBBER SEALING FORM CHARTS
Form |
Sealing Type |
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|
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Form A
|
DIN O-Ring
|
INSIDE DIAMETER (ID) |
CROSS SECTION (CS) |
|
Metric |
Inch |
Metric |
Inch |
Dash Size/ Fitting Size |
Thread Size |
6.10 |
0.24 |
1.63 |
0.06 |
- |
M8 X 1 |
8.00 |
0.31 |
1.50 |
0.06 |
4 |
M10 X 1 |
9.25 |
0.36 |
1.78 |
0.07 |
6 |
M12 X 1.5 |
10.82 |
0.43 |
1.78 |
0.07 |
8 |
M14 X 1.5 |
13.46 |
0.53 |
2.08 |
0.08 |
10 |
M16 X 1.5 |
15.54 |
0.61 |
2.62 |
0.10 |
12 |
M18 X 1.5 |
17.17 |
0.68 |
1.78 |
0.07 |
- |
M20 X 1.5 |
18.77 |
0.74 |
1.78 |
0.07 |
15 |
M22 X 1.5 |
20.35 |
0.80 |
1.78 |
0.07 |
- |
M24 X 1.5 |
21.89 |
0.86 |
2.62 |
0.10 |
18 |
M26 X1.5 |
23.47 |
0.92 |
2.62 |
0.10 |
- |
M27 X 2 |
26.64 |
1.05 |
2.62 |
0.10 |
22 |
M30 X 2 |
28.24 |
1.11 |
2.62 |
0.10 |
- |
M33 X 2 |
31.42 |
1.24 |
2.62 |
0.10 |
28 |
M36 X 2 |
37.77 |
1.49 |
2.62 |
0.10 |
- |
M42 X 2 |
40.94 |
1.61 |
2.62 |
0.10 |
- |
M45 X 2 |
44.12 |
1.74 |
2.62 |
0.10 |
- |
M48 X 2 |
45.69 |
1.80 |
2.62 |
0.10 |
- |
M50 X 2 |
|
Form B
|
Bonded Seal
|
10.40 |
0.41 |
2.00 |
0.08 |
- |
1/8-28 |
13.70 |
0.54 |
2.00 |
0.08 |
4 |
1/4-19 |
17.30 |
0.68 |
2.00 |
0.08 |
6 |
3/8-19 |
21.50 |
0.85 |
2.30 |
0.09 |
8 |
1/2-14 |
23.50 |
0.93 |
2.30 |
0.09 |
10 |
5/8-14 |
27.10 |
1.07 |
2.30 |
0.09 |
12 |
3/4-14 |
33.90 |
1.33 |
2.30 |
0.09 |
16 |
1-11 |
42.90 |
1.69 |
3.30 |
0.13 |
20 |
1 1/4-11 |
48.40 |
1.91 |
3.30 |
0.13 |
24 |
1 1/2-11 |
|
Form C
|
Flat Sealing Ring
|
|
|
|
|
|
|
8.4 |
0.33 |
1 |
0.04 |
2 |
G 1/8 A |
11.6 |
0.46 |
1.5 |
0.06 |
4 |
G 1/4 A |
14.7 |
0.58 |
1.5 |
0.06 |
6 |
G 3/8 A |
18.5 |
0.73 |
1.5 |
0.06 |
12 |
G 1/2 A |
|
|
|
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|
Form E
|
ISO O-RING
SAE
O-RING
|
6.10 |
0.24 |
1.6 |
0.06 |
4 |
M8 X 1 |
8.10 |
0.32 |
1.6 |
0.06 |
5 |
M10 X 1 |
9.30 |
0.37 |
2.2 |
0.09 |
6 |
M12 X 1.5 |
11.30 |
0.44 |
2.2 |
0.09 |
8 |
M14 X 1.5 |
13.30 |
0.52 |
2.2 |
0.09 |
10 |
M16 X 1.5 |
15.30 |
0.60 |
2.2 |
0.09 |
12 |
M18 X 1.5 |
19.30 |
0.76 |
2.2 |
0.09 |
16 |
M22 X 1.5 |
23.60 |
0.93 |
2.9 |
0.11 |
20 |
M27 X 2 |
26.60 |
1.05 |
2.9 |
0.11 |
- |
M26 X1.5 |
29.60 |
1.17 |
2.9 |
0.11 |
22 |
M30 X 2 |
34.60 |
1.36 |
2.9 |
0.11 |
- |
M38 X 2 |
38.60 |
1.52 |
2.9 |
0.11 |
30 |
M42 X 2 |
44.60 |
1.76 |
2.9 |
0.11 |
38 |
M48 X 2 |
56.60 |
2.23 |
2.9 |
0.11 |
- |
M60 X 2 |
|
|
|
|
|
|
6.10 |
0.24 |
1.52 |
0.06 |
2 |
1/8 |
7.62 |
.30 |
1.52 |
0.06 |
3 |
3/16 |
8.89 |
.35 |
1.78 |
0.07 |
4 |
1/4 |
10.41 |
.41 |
1.78 |
0.07 |
5 |
5/16 |
11.938 |
.47 |
2.03 |
0.08 |
6 |
3/8 |
16.256 |
.64 |
2.29 |
0.09 |
8 |
1/2 |
19.30 |
.76 |
2.54 |
0.10 |
10 |
5/8 |
23.36 |
.92 |
3.05 |
0.12 |
12 |
3/4 |
26.67 |
1.05 |
3.05 |
0.12 |
14 |
7/8 |
29.72 |
1.17 |
3.05 |
0.12 |
16 |
1 |
37.59 |
1.48 |
3.05 |
0.12 |
20 |
1 1/4 |
43.69 |
1.72 |
3.05 |
0.12 |
24 |
1 1/2 |
59.44 |
2.34 |
3.05 |
0.12 |
32 |
2 |
|
|
|
|
|
|
|
Form G
|
O-Ring Face Seal
|
9.30 |
0.37 |
1.78 |
0.07 |
6 |
3/8 |
12.40 |
0.49 |
1.78 |
0.07 |
8 |
1/2 |
15.60 |
0.61 |
1.78 |
0.07 |
10 |
5/8 |
18.80 |
0.74 |
1.78 |
0.07 |
12 |
3/4 |
21.80 |
0.86 |
1.78 |
0.07 |
14 |
7/8 |
23.50 |
0.93 |
1.78 |
0.07 |
16 |
1 |
29.90 |
1.18 |
1.78 |
0.07 |
20 |
1 3/4 |
37.80 |
1.49 |
1.78 |
0.07 |
24 |
1 1/2 |
49.00 |
1.93 |
2.54 |
0.10 |
32 |
2 |
Elastometric Sealing Specifications and Identification
Continue on to Step 3: Dash sizes